This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the effect of increasing the number of gas molecules in a container on the pressure, assuming volume and temperature are constant? A) The pressure increases. B) The pressure decreases. C) The pressure remains constant. D) The pressure becomes zero. Show Answer Correct Answer: A) The pressure increases. 2. In what state of matter do particles spread out and fill their container? A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 3. The amount of energy needed to convert a solid into a liquid. A) Melting Point. B) Boiling Point. C) Heat of Fusion. D) Heat of Vaporization. Show Answer Correct Answer: C) Heat of Fusion. 4. Two cubes have identical volume, but one has a higher density. It is ..... A) Heavier. B) Lighter. C) Softer. D) Rougher. Show Answer Correct Answer: A) Heavier. 5. A liquid is able to flow because ..... A) There are spaces between liquid molecules. B) Liquid molecules travel at high speeds. C) Liquid molecules can move among one another throughout the liquid. D) Liquid molecules repel one another. Show Answer Correct Answer: C) Liquid molecules can move among one another throughout the liquid. 6. Which of the following statements best describes the Kinetic Theory of Gases? A) Gas particles are in constant random motion and exert pressure when they collide with the walls of their container. B) Gas particles are stationary and only move when heated. C) Gas particles are in constant motion and do not exert any pressure. D) Gas particles move in a uniform direction and speed. Show Answer Correct Answer: A) Gas particles are in constant random motion and exert pressure when they collide with the walls of their container. 7. In physics what quantity is given the symbol c ( in lower case letters)? A) Celcius. B) Charge. C) Specific heat capacity. D) Coulombs. Show Answer Correct Answer: C) Specific heat capacity. 8. Gas ..... particles have higher amounts of kinetic energy than when in the liquid state. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. At standard temperature and pressure the density of a gas is 1.3 g m-3 and the speed of the sound in gas is 330 m s-1. Then the degrees of freedom of the gas is A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: C) 5. 10. Brownian motion shows that A) Particles in all states of matter are in constant, random motion. B) Particles in a fluid are in continuous, random motion. C) Particles in solids vibrate about fixed positions. D) Particles in gases are farther apart compared to in liquids. Show Answer Correct Answer: B) Particles in a fluid are in continuous, random motion. 11. Which of the following is NOT a part of the Kinetic Theory of Matter? A) All matter is made up of tiny particles. B) Occasionally, particles stop moving. C) Particles are always moving in random paths. D) The type of movement of particles depends on the amount of energy. Show Answer Correct Answer: B) Occasionally, particles stop moving. 12. The number of degrees of freedom of diatomic gas is A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: D) 5. 13. Which of the following is a postulate of the kinetic theory of gases? A) Gas particles are in constant random motion. B) Gas particles attract each other. C) Gas particles have a fixed volume. D) Gas particles lose energy during collisions. Show Answer Correct Answer: A) Gas particles are in constant random motion. 14. In the context of kinetic theory, what does the term 'fluidity' refer to in liquids? A) The ability of particles to form a solid structure. B) The ability of particles to move past one another easily. C) The ability of particles to conduct electricity. D) The ability of particles to remain stationary. Show Answer Correct Answer: B) The ability of particles to move past one another easily. 15. No energy is lost when gas particles collide. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Which of the following will diffuse the fastest? A) A tablespoon of sugar in a glass of water. B) Heat through a solid piece of steel. C) A pinch of salt in a glass of water. D) The smell of bacon cooking throughout a room. Show Answer Correct Answer: D) The smell of bacon cooking throughout a room. 17. HSO$_{4}$$^{-}$is an example of ..... ion. A) Monoatomic. B) Diatomic. C) Polyatomic. D) None of the above. Show Answer Correct Answer: C) Polyatomic. 18. Explain the concept of Brownian motion in relation to molecular kinetic theory. A) Brownian motion is a result of magnetic forces acting on particles in a fluid. B) Brownian motion is caused by the gravitational pull on particles in a fluid. C) Brownian motion only occurs in gases, not in liquids. D) Brownian motion is the random movement of particles suspended in a fluid due to collisions with the fluid molecules, as explained by molecular kinetic theory. Show Answer Correct Answer: D) Brownian motion is the random movement of particles suspended in a fluid due to collisions with the fluid molecules, as explained by molecular kinetic theory. 19. What is the variable for this number:22.7 L/mol? A) P. B) T. C) N. D) V. Show Answer Correct Answer: D) V. 20. Which of the following statements is true about the root-mean-square speed of gas molecules? A) It decreases with increasing temperature. B) It is independent of the mass of the molecules. C) It is directly proportional to the square root of the temperature. D) It is inversely proportional to the pressure. Show Answer Correct Answer: C) It is directly proportional to the square root of the temperature. 21. Evaporation is what kind of change and WHY? A) Endothermic because it requires energy. B) Exothermic because it requires energy. C) Endothermic because it releases energy. D) Exothermic because it requires energy. Show Answer Correct Answer: A) Endothermic because it requires energy. 22. Particles in a solid move ..... , than particles in a gas A) Faster. B) Slower. C) More randomly. D) More fluidly. Show Answer Correct Answer: B) Slower. 23. All atoms/elements bond in order to ..... A) Have a full valence shell. B) Give away electrons or take electrons. C) Only share electrons. D) To create electrical currents for human use. Show Answer Correct Answer: A) Have a full valence shell. 24. How many protons and electrons does a carbon atom have? A) 6 protons, 6 electrons. B) 6 protons, 4 electrons. C) 4 protons, 6 electrons. D) Not enough information. Show Answer Correct Answer: A) 6 protons, 6 electrons. 25. What is the effect of increasing the number of gas particles in a closed container at constant temperature? A) Pressure increases. B) Pressure decreases. C) Volume increases. D) None of the above. Show Answer Correct Answer: A) Pressure increases. ← PreviousNext →Related QuizzesClass 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 1Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 2Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 3Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 4Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 5Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 6Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 7Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 8Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 9Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books