{"id":12689,"date":"2025-09-20T12:03:50","date_gmt":"2025-09-20T11:03:50","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=12689"},"modified":"2025-11-10T06:20:02","modified_gmt":"2025-11-10T06:20:02","slug":"the-kinetic-theory-of-matter-top-100-mcqs-with-answer-and-explanation","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/09\/20\/the-kinetic-theory-of-matter-top-100-mcqs-with-answer-and-explanation\/","title":{"rendered":"The Kinetic Theory of matter Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">1. The kinetic theory of matter explains<\/mark><\/strong><br>A) Behavior of matter in terms of motion of particles<br>B) Color of matter<br>C) Shape of solids<br>D) Sound in air<br><strong>Answer:<\/strong> A) Behavior of matter in terms of motion of particles<br><strong>Explanation:<\/strong> It states that matter consists of tiny particles in constant motion.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">2. According to kinetic theory, all matter is made up of<\/mark><\/strong><br>A) Tiny particles<br>B) Energy only<br>C) Light rays<br>D) Sound waves<br><strong>Answer:<\/strong> A) Tiny particles<br><strong>Explanation:<\/strong> Matter is composed of atoms or molecules that move continuously.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">3. The kinetic theory mainly explains<\/mark><\/strong><br>A) States of matter and their properties<br>B) Chemical reactions<br>C) Magnetism<br>D) Reflection of light<br><strong>Answer:<\/strong> A) States of matter and their properties<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">4. In kinetic theory, temperature measures<\/mark><\/strong><br>A) Average kinetic energy of particles<br>B) Total potential energy<br>C) Pressure<br>D) Volume<br><strong>Answer:<\/strong> A) Average kinetic energy of particles<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">5. The kinetic energy of particles increases when<\/mark><\/strong><br>A) Temperature increases<br>B) Temperature decreases<br>C) Pressure increases<br>D) Density decreases<br><strong>Answer:<\/strong> A) Temperature increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">6. The kinetic theory applies best to<\/mark><\/strong><br>A) Gases<br>B) Solids<br>C) Liquids<br>D) Plasma<br><strong>Answer:<\/strong> A) Gases<br><strong>Explanation:<\/strong> Because gas particles are free to move and collisions are more noticeable.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">7. In gases, intermolecular forces are<\/mark><\/strong><br>A) Very weak<br>B) Very strong<br>C) Moderate<br>D) Variable<br><strong>Answer:<\/strong> A) Very weak<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">8. In solids, the particles<\/mark><\/strong><br>A) Vibrate about fixed positions<br>B) Move freely<br>C) Are far apart<br>D) Randomly scatter<br><strong>Answer:<\/strong> A) Vibrate about fixed positions<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">9. The pressure of a gas is due to<\/mark><\/strong><br>A) Collisions of molecules with the container walls<br>B) Gravitational pull<br>C) Magnetic field<br>D) Chemical reaction<br><strong>Answer:<\/strong> A) Collisions of molecules with the container walls<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">10. The force between molecules of matter is called<\/mark><\/strong><br>A) Intermolecular force<br>B) Frictional force<br>C) Magnetic force<br>D) Elastic force<br><strong>Answer:<\/strong> A) Intermolecular force<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">11. The space between molecules is called<\/mark><\/strong><br>A) Intermolecular space<br>B) Atomic gap<br>C) Void<br>D) Air space<br><strong>Answer:<\/strong> A) Intermolecular space<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">12. The kinetic theory assumes that gas molecules move in<\/mark><\/strong><br>A) Random motion<br>B) Fixed paths<br>C) Circular orbits<br>D) Oscillations<br><strong>Answer:<\/strong> A) Random motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">13. The molecular motion stops completely at<\/mark><\/strong><br>A) Absolute zero temperature<br>B) Boiling point<br>C) Room temperature<br>D) Melting point<br><strong>Answer:<\/strong> A) Absolute zero temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">14. The average kinetic energy of gas molecules is proportional to<\/mark><\/strong><br>A) Temperature<br>B) Pressure<br>C) Volume<br>D) Density<br><strong>Answer:<\/strong> A) Temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">15. Brownian motion gives evidence that<\/mark><\/strong><br>A) Molecules are in constant motion<br>B) Atoms are stationary<br>C) Air is weightless<br>D) Matter is continuous<br><strong>Answer:<\/strong> A) Molecules are in constant motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">16. Brownian motion was discovered by<\/mark><\/strong><br>A) Robert Brown<br>B) Rutherford<br>C) Newton<br>D) Faraday<br><strong>Answer:<\/strong> A) Robert Brown<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">17. The kinetic energy of molecules is greatest in<\/mark><\/strong><br>A) Gases<br>B) Liquids<br>C) Solids<br>D) Ice<br><strong>Answer:<\/strong> A) Gases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">18. The interparticle spacing is smallest in<\/mark><\/strong><br>A) Solids<br>B) Liquids<br>C) Gases<br>D) Plasma<br><strong>Answer:<\/strong> A) Solids<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">19. The process of mixing of two gases is called<\/mark><\/strong><br>A) Diffusion<br>B) Evaporation<br>C) Osmosis<br>D) Condensation<br><strong>Answer:<\/strong> A) Diffusion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">20. The rate of diffusion increases with<\/mark><\/strong><br>A) Temperature<br>B) Decrease in temperature<br>C) Decrease in pressure<br>D) Gravity<br><strong>Answer:<\/strong> A) Temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">21. The process of diffusion supports<\/mark><\/strong><br><strong>A)<\/strong> Kinetic theory of matter<br><strong>B)<\/strong> Electrostatics<br><strong>C)<\/strong> Magnetism<br><strong>D)<\/strong> Thermodynamics<br><strong>Answer:<\/strong> A) Kinetic theory of matter<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">22. The interconversion of states of matter is due to<\/mark><\/strong><br>A) Change in kinetic energy<br>B) Change in density<br>C) Change in color<br>D) Shape change<br><strong>Answer:<\/strong> A) Change in kinetic energy<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">23. When heat is supplied to a solid, its particles<\/mark><\/strong><br>A) Vibrate faster and move apart<br>B) Stop moving<br>C) Become heavier<br>D) Lose energy<br><strong>Answer:<\/strong> A) Vibrate faster and move apart<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">24. When a gas is cooled, the molecules<\/mark><\/strong><br>A) Lose energy and move slowly<br>B) Move faster<br>C) Remain same<br>D) Expand<br><strong>Answer:<\/strong> A) Lose energy and move slowly<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">25. The conversion of solid to gas directly is called<\/mark><\/strong><br>A) Sublimation<br>B) Condensation<br>C) Fusion<br>D) Freezing<br><strong>Answer:<\/strong> A) Sublimation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">26. The conversion of liquid into vapor is<\/mark><\/strong><br>A) Evaporation<br>B) Freezing<br>C) Condensation<br>D) Sublimation<br><strong>Answer:<\/strong> A) Evaporation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">27. Evaporation causes<\/mark><\/strong><br>A) Cooling effect<br>B) Heating<br>C) Melting<br>D) Pressure increase<br><strong>Answer:<\/strong> A) Cooling effect<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">28. The temperature at which a solid melts is<\/mark><\/strong><br>A) Melting point<br>B) Boiling point<br>C) Evaporation point<br>D) Condensation point<br><strong>Answer:<\/strong> A) Melting point<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">29. The temperature at which liquid starts boiling is<\/mark><\/strong><br>A) Boiling point<br>B) Melting point<br>C) Freezing point<br>D) Saturation point<br><strong>Answer:<\/strong> A) Boiling point<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">30. The process of gas changing into liquid is<\/mark><\/strong><br>A) Condensation<br>B) Fusion<br>C) Sublimation<br>D) Freezing<br><strong>Answer:<\/strong> A) Condensation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">31. The process of liquid changing into solid is<\/mark><\/strong><br>A) Freezing<br>B) Melting<br>C) Boiling<br>D) Diffusion<br><strong>Answer:<\/strong> A) Freezing<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">32. The increase in temperature increases<\/mark><\/strong><br>A) Molecular motion<br>B) Cohesive force<br>C) Density<br>D) Solidification<br><strong>Answer:<\/strong> A) Molecular motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">33. Gases can be compressed easily because<\/mark><\/strong><br>A) Molecules are far apart<br>B) Molecules are close<br>C) They are heavy<br>D) They have strong attraction<br><strong>Answer:<\/strong> A) Molecules are far apart<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">34. Solids are not easily compressible because<\/mark><\/strong><br>A) Particles are tightly packed<br>B) Gaps are large<br>C) They are light<br>D) They move fast<br><strong>Answer:<\/strong> A) Particles are tightly packed<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">35. Liquids have fixed volume but no fixed shape because<\/mark><\/strong><br>A) Molecules move freely but remain close<br>B) Molecules are far apart<br>C) Strong bonds<br>D) Constant collisions<br><strong>Answer:<\/strong> A) Molecules move freely but remain close<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">36. The three main states of matter are<\/mark><\/strong><br>A) Solid, Liquid, Gas<br>B) Solid, Water, Ice<br>C) Metal, Nonmetal, Gas<br>D) Iron, Wood, Water<br><strong>Answer:<\/strong> A) Solid, Liquid, Gas<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">37. The force of attraction is strongest in<\/mark><\/strong><br>A) Solids<br>B) Liquids<br>C) Gases<br>D) Vapors<br><strong>Answer:<\/strong> A) Solids<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">38. The force of attraction is weakest in<\/mark><\/strong><br>A) Gases<br>B) Solids<br>C) Liquids<br>D) Ice<br><strong>Answer:<\/strong> A) Gases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">39. The random motion of particles in a fluid is called<\/mark><\/strong><br>A) Brownian motion<br>B) Wave motion<br>C) Simple motion<br>D) Electric motion<br><strong>Answer:<\/strong> A) Brownian motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">40. Brownian motion is evidence that<\/mark><\/strong><br>A) Matter is made of moving particles<br>B) Molecules are fixed<br>C) Gases are heavy<br>D) Solids don\u2019t move<br><strong>Answer:<\/strong> A) Matter is made of moving particles<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">41. When temperature increases, the average kinetic energy of particles<\/mark><\/strong><br>A) Increases<br>B) Decreases<br>C) Remains constant<br>D) Becomes zero<br><strong>Answer:<\/strong> A) Increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">42. The term \u201ckinetic\u201d means<\/mark><\/strong><br>A) Motion<br>B) Static<br>C) Cold<br>D) Weight<br><strong>Answer:<\/strong> A) Motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">43. Gases fill the entire container because<\/mark><\/strong><br>A) Molecules move randomly in all directions<br>B) They are light<br>C) They have fixed shape<br>D) They are dense<br><strong>Answer:<\/strong> A) Molecules move randomly in all directions<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">44. When a gas is compressed, its pressure<\/mark><\/strong><br>A) Increases<br>B) Decreases<br>C) Remains constant<br>D) Becomes zero<br><strong>Answer:<\/strong> A) Increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">45. The term \u201cdiffusion\u201d applies to<\/mark><\/strong><br>A) Solids, liquids, and gases<br>B) Solids only<br>C) Liquids only<br>D) Gases only<br><strong>Answer:<\/strong> A) Solids, liquids, and gases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">46. The diffusion rate is highest in<\/mark><\/strong><br>A) Gases<br>B) Liquids<br>C) Solids<br>D) Metals<br><strong>Answer:<\/strong> A) Gases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">47. The kinetic theory of gases explains<\/mark><\/strong><br>A) Pressure, temperature, and volume relations<br>B) Magnetism<br>C) Electricity<br>D) Sound waves<br><strong>Answer:<\/strong> A) Pressure, temperature, and volume relations<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">48. The collisions of gas molecules are<\/mark><\/strong><br>A) Perfectly elastic<br>B) Inelastic<br>C) Sticky<br>D) Irregular<br><strong>Answer:<\/strong> A) Perfectly elastic<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">49. The average distance between collisions is called<\/mark><\/strong><br>A) Mean free path<br>B) Mean speed<br>C) Mean distance<br>D) Range<br><strong>Answer:<\/strong> A) Mean free path<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">50. The kinetic energy of gas molecules depends only on<\/mark><\/strong><br>A) Temperature<br>B) Pressure<br>C) Volume<br>D) Density<br><strong>Answer:<\/strong> A) Temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">51. The kinetic theory assumes that the volume of gas molecules themselves is<\/mark><\/strong><br>A) Negligible compared to total gas volume<br>B) Equal to container volume<br>C) Half of container volume<br>D) Zero<br><strong>Answer:<\/strong> A) Negligible compared to total gas volume<br><strong>Explanation:<\/strong> The molecules occupy very little space compared to the total volume of gas.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">52. According to the kinetic theory, gas molecules move<\/mark><\/strong><br>A) Randomly in all directions<br>B) Only upward<br>C) In fixed circles<br>D) In straight lines toward the walls only<br><strong>Answer:<\/strong> A) Randomly in all directions<br><strong>Explanation:<\/strong> Molecules of gases move freely and randomly, colliding with each other and the walls.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">53. Gas pressure increases with temperature because<\/mark><\/strong><br>A) Molecules move faster and hit walls more often<br>B) Molecules slow down<br>C) Volume decreases<br>D) Molecules stop moving<br><strong>Answer:<\/strong> A) Molecules move faster and hit walls more often<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">54. The average speed of gas molecules increases when<\/mark><\/strong><br>A) Temperature increases<br>B) Pressure increases<br>C) Volume decreases<br>D) Gas cools down<br><strong>Answer:<\/strong> A) Temperature increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">55. At a given temperature, all gases have the same<\/mark><\/strong><br>A) Average kinetic energy per molecule<br>B) Volume<br>C) Pressure<br>D) Density<br><strong>Answer:<\/strong> A) Average kinetic energy per molecule<br><strong>Explanation:<\/strong> The kinetic energy depends only on temperature, not on the type of gas.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">56. The pressure of a gas is due to<\/mark><\/strong><br>A) Collisions of molecules with the walls of the container<br>B) Attraction between molecules<br>C) Weight of the gas<br>D) Gravity<br><strong>Answer:<\/strong> A) Collisions of molecules with the walls of the container<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">57. Gas molecules exert no force on each other except during<\/mark><\/strong><br>A) Collisions<br>B) Heating<br>C) Cooling<br>D) Expansion<br><strong>Answer:<\/strong> A) Collisions<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">58. The gas molecules are in constant<\/mark><\/strong><br>A) Random motion<br>B) Rest<br>C) Fixed orbit<br>D) Rotation only<br><strong>Answer:<\/strong> A) Random motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">59. The total energy of gas molecules is the sum of<\/mark><\/strong><br>A) Kinetic and potential energies<br>B) Electrical energy<br>C) Chemical energy<br>D) Sound energy<br><strong>Answer:<\/strong> A) Kinetic and potential energies<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">60. The pressure of a gas decreases when<\/mark><\/strong><br>A) Temperature decreases<br>B) Temperature increases<br>C) Collisions increase<br>D) Volume decreases<br><strong>Answer:<\/strong> A) Temperature decreases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">61. The diffusion of gases is evidence of<\/mark><\/strong><br>A) Molecular motion<br>B) Magnetism<br>C) Heat conduction<br>D) Elasticity<br><strong>Answer:<\/strong> A) Molecular motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">62. The random motion of particles suspended in a liquid or gas is called<\/mark><\/strong><br>A) Brownian motion<br>B) Circular motion<br>C) Simple motion<br>D) Vibration<br><strong>Answer:<\/strong> A) Brownian motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">63. The motion of smoke particles under a microscope provides evidence of<\/mark><\/strong><br>A) Existence of atoms and molecules<br>B) Magnetic forces<br>C) Gravitational pull<br>D) Electric fields<br><strong>Answer:<\/strong> A) Existence of atoms and molecules<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">64. The pressure of a gas depends on<\/mark><\/strong><br>A) Number of molecules and their speed<br>B) Color of container<br>C) Shape of container<br>D) Direction of flow<br><strong>Answer:<\/strong> A) Number of molecules and their speed<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">65. When a gas is heated at constant volume, pressure<\/mark><\/strong><br>A) Increases<br>B) Decreases<br>C) Remains constant<br>D) Becomes zero<br><strong>Answer:<\/strong> A) Increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">66. When gas is compressed, its molecules<\/mark><\/strong><br>A) Move closer together<br>B) Move farther apart<br>C) Remain fixed<br>D) Stop colliding<br><strong>Answer:<\/strong> A) Move closer together<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">67. The kinetic theory assumes that molecular collisions are<\/mark><\/strong><br>A) Perfectly elastic<br>B) Perfectly inelastic<br>C) Sticky<br>D) Partially elastic<br><strong>Answer:<\/strong> A) Perfectly elastic<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">68. The temperature of a substance is directly related to<\/mark><\/strong><br>A) Average kinetic energy of its particles<br>B) Potential energy<br>C) Chemical energy<br>D) Electrical energy<br><strong>Answer:<\/strong> A) Average kinetic energy of its particles<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">69. The pressure exerted by a gas is proportional to<\/mark><\/strong><br>A) Number of collisions per second<br>B) Size of molecules<br>C) Shape of container<br>D) Color of walls<br><strong>Answer:<\/strong> A) Number of collisions per second<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">70. The volume occupied by gases is mostly<\/mark><\/strong><br>A) Empty space<br>B) Solid matter<br>C) Dense molecules<br>D) Heavy atoms<br><strong>Answer:<\/strong> A) Empty space<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">71. The kinetic theory explains<\/mark><\/strong><br>A) Gas laws<br>B) Ohm\u2019s law<br>C) Newton\u2019s laws<br>D) Faraday\u2019s laws<br><strong>Answer:<\/strong> A) Gas laws<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">72. As temperature increases, intermolecular forces<\/mark><\/strong><br>A) Decrease<br>B) Increase<br>C) Remain constant<br>D) Become zero instantly<br><strong>Answer:<\/strong> A) Decrease<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">73. The motion of gas molecules is<\/mark><\/strong><br>A) Constant, random, and rapid<br>B) Slow and uniform<br>C) Irregular and stationary<br>D) Only upward<br><strong>Answer:<\/strong> A) Constant, random, and rapid<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">74. The average distance a molecule travels before colliding with another is<\/mark><\/strong><br>A) Mean free path<br>B) Displacement<br>C) Kinetic path<br>D) Random gap<br><strong>Answer:<\/strong> A) Mean free path<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">75. The pressure of a gas increases if<\/mark><\/strong><br>A) Volume decreases<br>B) Temperature decreases<br>C) Molecules slow down<br>D) Collisions reduce<br><strong>Answer:<\/strong> A) Volume decreases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">76. The speed of diffusion is highest in<\/mark><\/strong><br>A) Light gases<br>B) Heavy gases<br>C) Liquids<br>D) Solids<br><strong>Answer:<\/strong> A) Light gases<br><strong>Explanation:<\/strong> Lighter molecules move faster due to less mass.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">77. When a solid melts, its particles<\/mark><\/strong><br>A) Gain kinetic energy<br>B) Lose kinetic energy<br>C) Stop moving<br>D) Remain fixed<br><strong>Answer:<\/strong> A) Gain kinetic energy<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">78. Cooling a gas reduces<\/mark><\/strong><br>A) Speed of its molecules<br>B) Number of molecules<br>C) Pressure<br>D) Both A and C<br><strong>Answer:<\/strong> D) Both A and C<br><strong>Explanation:<\/strong> Lower temperature reduces molecular speed, lowering gas pressure.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">79. The Brownian motion occurs due to<\/mark><\/strong><br>A) Collisions of invisible molecules with visible particles<br>B) Gravitational pull<br>C) Magnetic field<br>D) Light waves<br><strong>Answer:<\/strong> A) Collisions of invisible molecules with visible particles<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">80. The state of matter with weakest intermolecular forces is<\/mark><\/strong><br>A) Gas<br>B) Liquid<br>C) Solid<br>D) Plasma<br><strong>Answer:<\/strong> A) Gas<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">81. The state of matter with definite shape and volume is<\/mark><\/strong><br>A) Solid<br>B) Liquid<br>C) Gas<br>D) Plasma<br><strong>Answer:<\/strong> A) Solid<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">82. The state of matter with definite volume but no definite shape is<\/mark><\/strong><br>A) Liquid<br>B) Solid<br>C) Gas<br>D) Plasma<br><strong>Answer:<\/strong> A) Liquid<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">83. Gases have neither definite shape nor volume because<\/mark><\/strong><br>A) Molecules move freely and far apart<br>B) Molecules are heavy<br>C) They contain ions<br>D) They are magnetic<br><strong>Answer:<\/strong> A) Molecules move freely and far apart<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">84. Increasing temperature of a liquid increases<\/mark><\/strong><br>A) Rate of evaporation<br>B) Density<br>C) Freezing<br>D) Cooling<br><strong>Answer:<\/strong> A) Rate of evaporation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">85. Diffusion occurs faster in<\/mark><\/strong><br>A) Gases than liquids<br>B) Liquids than solids<br>C) Solids than gases<br>D) Metals<br><strong>Answer:<\/strong> A) Gases than liquids<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">86. Matter expands on heating because<\/mark><\/strong><br>A) Molecules move faster and push apart<br>B) Molecules shrink<br>C) Attraction increases<br>D) Motion stops<br><strong>Answer:<\/strong> A) Molecules move faster and push apart<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">87. When a gas expands, its density<\/mark><\/strong><br>A) Decreases<br>B) Increases<br>C) Remains same<br>D) Becomes infinite<br><strong>Answer:<\/strong> A) Decreases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">88. The molecular theory of matter supports the<\/mark><\/strong><br>A) Particle nature of matter<br>B) Wave nature of light<br>C) Static nature of solids<br>D) Chemical theory<br><strong>Answer:<\/strong> A) Particle nature of matter<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">89. The Brownian motion is more vigorous at<\/mark><\/strong><br>A) Higher temperature<br>B) Lower temperature<br>C) Freezing point<br>D) Constant pressure<br><strong>Answer:<\/strong> A) Higher temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">90. The internal energy of matter increases when<\/mark><\/strong><br>A) Temperature rises<br>B) Pressure falls<br>C) Volume decreases<br>D) Cooling occurs<br><strong>Answer:<\/strong> A) Temperature rises<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">91. The molecules of a gas move in<\/mark><\/strong><br>A) Straight lines between collisions<br>B) Circles<br>C) Random curves<br>D) Spiral paths<br><strong>Answer:<\/strong> A) Straight lines between collisions<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">92. The kinetic theory of gases was developed by<\/mark><\/strong><br>A) Maxwell and Boltzmann<br>B) Newton and Faraday<br>C) Dalton and Curie<br>D) Einstein and Planck<br><strong>Answer:<\/strong> A) Maxwell and Boltzmann<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">93. The absolute zero temperature is the temperature at which<\/mark><\/strong><br>A) Molecular motion stops<br>B) Water freezes<br>C) Ice melts<br>D) Metal expands<br><strong>Answer:<\/strong> A) Molecular motion stops<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">94. The physical properties of gases can be explained by<\/mark><\/strong><br>A) Kinetic theory of gases<br>B) Atomic theory<br>C) Thermionic emission<br>D) Nuclear theory<br><strong>Answer:<\/strong> A) Kinetic theory of gases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">95. At high temperature, gas molecules move<\/mark><\/strong>A) Faster<br>B) Slower<br>C) Randomly<br>D) Not at all<br><strong>Answer:<\/strong> A) Faster<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">96. At low temperature, the kinetic energy of molecules<\/mark><\/strong><br>A) Decreases<br>B) Increases<br>C) Becomes constant<br>D) Doubles<br><strong>Answer:<\/strong> A) Decreases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">97. The evidence that air exerts pressure is given by<\/mark><\/strong><br>A) Behavior of balloons and syringes<br>B) Diffusion of ink<br>C) Motion of solids<br>D) Conductivity of metals<br><strong>Answer:<\/strong> A) Behavior of balloons and syringes<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">98. When temperature is increased, gas pressure rises because<\/mark><\/strong><br>A) Molecules collide more frequently and with more force<br>B) Molecules stop moving<br>C) Volume shrinks<br>D) Gas escapes<br><strong>Answer:<\/strong> A) Molecules collide more frequently and with more force<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">99. The concept of kinetic theory helps explain<\/mark><\/strong><br>A) Expansion of solids, liquids, and gases on heating<br>B) Sound waves only<br>C) Magnetism<br>D) Gravity<br><strong>Answer:<\/strong> A) Expansion of solids, liquids, and gases on heating<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">100. The main idea of the kinetic theory of matter is that<\/mark><\/strong><br>A) All matter is made of tiny particles in constant motion<br>B) Matter is continuous and still<br>C) Matter is uniform throughout<br>D) Particles remain fixed<br><strong>Answer:<\/strong> A) All matter is made of tiny particles in constant motion<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. The kinetic theory of matter explainsA) Behavior of matter in terms of motion of particlesB) Color of matterC) Shape of solidsD) Sound in airAnswer: A) Behavior of matter in terms of motion of particlesExplanation: It states that matter consists of tiny particles in constant motion. 2. According to kinetic theory, all matter is made<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"[]"},"categories":[8],"tags":[15481,15848,15840,15838,15852,15846,15850,15845,4029,5649,15465,5623,15849,15843,15847,15841,15789,15536,15461,15479,15474,15467,15483,15472,15592,15456,15851,15478,15469,15839,15842,10963,15844,15480],"class_list":{"0":"post-12689","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-physics","7":"tag-competitive-exam-physics","8":"tag-gas-kinetics","9":"tag-gas-laws","10":"tag-ideal-gas-equation","11":"tag-internal-energy","12":"tag-kinetic-energy-of-molecules","13":"tag-kinetic-theory-of-matter","14":"tag-kinetic-theory-problems","15":"tag-mcqs-adda","16":"tag-mcqs-for-pc-psi-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","17":"tag-mcqs-for-physics-exam","18":"tag-mcqs-for-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","19":"tag-molecular-collisions","20":"tag-molecular-motion","21":"tag-molecular-speed","22":"tag-particle-theory","23":"tag-physics-concepts","24":"tag-physics-formulas","25":"tag-physics-fundamentals","26":"tag-physics-learning","27":"tag-physics-mcqs","28":"tag-physics-preparation-material","29":"tag-physics-questions-and-answers","30":"tag-physics-quiz","31":"tag-physics-revision","32":"tag-physics-study-material","33":"tag-pressure-of-gas","34":"tag-psc-physics-mcqs","35":"tag-ssc-physics-mcqs","36":"tag-states-of-matter","37":"tag-temperature-and-kinetic-energy","38":"tag-the-kinetic-theory-of-matter-top-100-mcqs-with-answer-and-explanation","39":"tag-thermodynamics-basics","40":"tag-upsc-physics-mcqs"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=12689"}],"version-history":[{"count":4,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12689\/revisions"}],"predecessor-version":[{"id":17708,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12689\/revisions\/17708"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=12689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=12689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=12689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}