This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What happens to the particles when I add heat? A) The particles get bigger. B) The particles get smaller. C) The particles get slower. D) The particles get faster. Show Answer Correct Answer: D) The particles get faster. 2. When ice melts ..... A) The mass of the water decreases during melting. B) The mass of the water stays the same before, during and after melting. C) The mass of the water is always changing. D) The mass of the water increases during melting. Show Answer Correct Answer: B) The mass of the water stays the same before, during and after melting. 3. What is 0 degrees Celsius converted into Kelvin? A) 32 K. B) 273 K. C) 200 K. D) 0 K. Show Answer Correct Answer: B) 273 K. 4. What is the impact of cooling on the motion of liquid particles according to the Kinetic Theory? A) Particles move faster. B) Particles move slower. C) Particles stop moving. D) Particles move in a fixed pattern. Show Answer Correct Answer: B) Particles move slower. 5. A molecule of mass m moving with a velocity v makes 5 elastic collisions with a wall of the container per second. The change in its momentum per second will be A) Mv. B) 5 mv. C) Mv/10. D) 10 mv. Show Answer Correct Answer: D) 10 mv. 6. The amount of energy needed to make a substance change phases is dependent on what? A) The strength of the attractive forces between the particles in the substance. B) The color of the substance. C) The state the substance is in. D) None of the above. Show Answer Correct Answer: A) The strength of the attractive forces between the particles in the substance. 7. When water molecules are heated, they A) Increase in speed. B) Decrease in speed. C) Move closer together. D) None of the above. Show Answer Correct Answer: A) Increase in speed. 8. At room temperature, ..... and ..... are the two gases which shows heating effect on adiabatic expansion through porous plug. A) Oxygen, Carbon di Oxide. B) Hydrogen, Oxygen. C) Helium, Hydrogen. D) Nitrogen, Helium. Show Answer Correct Answer: C) Helium, Hydrogen. 9. The octet rule means that all valence shells want to have the number ..... A) 1. B) 9. C) 8. D) 16. Show Answer Correct Answer: C) 8. 10. What is the relationship between temperature and volume when pressure is kept constant? A) They are inversely proportional. B) They are directly proportional. C) They are unrelated. D) They are directly proportional only at high temperatures. Show Answer Correct Answer: B) They are directly proportional. 11. Following gases are kept at the same temperature. Which gas possesses maximum r.m.s. speed? A) Oxygen. B) Nitrogen. C) Hydrogen. D) Carbon dioxide. Show Answer Correct Answer: C) Hydrogen. 12. Brownian motion is the random motion of particles. In which states of matter is Brownian motion observed? 0625/22/O/N/23 A) Gases, liquids and solids. B) Gases and liquids only. C) Gases and solids only. D) Liquids and solids only. Show Answer Correct Answer: B) Gases and liquids only. 13. In an experiment, a gas is heated from 300K to 600K while keeping the pressure constant. According to Charles's Law, what happens to the volume of the gas? A) The volume doubles. B) The volume halves. C) The volume remains the same. D) The volume quadruples. Show Answer Correct Answer: A) The volume doubles. 14. Which statement correctly describes a change of state?0625/22/F/M/24 A) A gas condenses to form a liquid. B) A liquid melts to form a solid. C) A solid condenses to form a liquid. D) A solid boils to form a gas. Show Answer Correct Answer: A) A gas condenses to form a liquid. 15. According to Boyle's Law, what happens to the volume of a gas if the pressure is doubled while the temperature remains constant? A) The volume doubles. B) The volume is halved. C) The volume remains the same. D) The volume quadruples. Show Answer Correct Answer: B) The volume is halved. 16. Define mean-free-path in a gas system. A) The mean-free-path in a gas system is the average distance a molecule travels between collisions. B) The mean-free-path is the maximum distance a gas molecule can travel in a vacuum. C) Mean-free-path refers to the time taken for a molecule to collide with another molecule. D) The mean-free-path is the total distance a gas molecule can travel without any external forces. Show Answer Correct Answer: A) The mean-free-path in a gas system is the average distance a molecule travels between collisions. 17. Pick the best answer to explain all properties of gases ..... A) They're fluids Can be compressedLittle space between particles. B) They're solids Can be compressedLots of space between particles. C) They're fluids Cannot be compressedLots of space between particles. D) Can be compressedLots of space between particles. Show Answer Correct Answer: D) Can be compressedLots of space between particles. 18. What causes Brownian motion of dust particles in the air? A) Convection current in the air. B) Dust particles falling towards the ground. C) Random collisions between the dust particles. D) Random collisions of air molecules with the dust particles. Show Answer Correct Answer: D) Random collisions of air molecules with the dust particles. 19. Part of the Ideal Gas Law states that gases are composed of tiny particles with ..... A) Very significant volume. B) Insignificant volume. C) Huge mass. D) No mass. Show Answer Correct Answer: B) Insignificant volume. 20. The simple kinetic theory of gases may be used to derive the expression relating the pressure p to the density r of a gas. p = $\frac{1}{3}\\rho$ $$ A) Theaverage of the squares of the speeds of the gas molecules. B) Theroot-mean-square of the gas molecules. C) Thesquare of the average speed of the gas molecules. D) Thesum of the squares of the speeds of the gas molecules. Show Answer Correct Answer: A) Theaverage of the squares of the speeds of the gas molecules. 21. Which of the following statements is true about the kinetic energy of gas particles? A) All particles have the same kinetic energy at a given temperature. B) Kinetic energy is higher in lighter gas particles at the same temperature. C) Kinetic energy is lower in lighter gas particles at the same temperature. D) Kinetic energy is independent of the mass of the particles. Show Answer Correct Answer: B) Kinetic energy is higher in lighter gas particles at the same temperature. 22. How many atoms are in this molecule? C$_{6}$H$_{12}$O$_{6}$ A) 6. B) 12. C) 18. D) 24. Show Answer Correct Answer: D) 24. 23. The locus of all points at which the Joule-Kelvin coefficient is ..... is the inversion curve. A) Negative. B) Positive. C) Zero. D) Infinity. Show Answer Correct Answer: C) Zero. 24. What is 300 K in $^{O}$C A) 300. B) 273. C) 27. D) 246. Show Answer Correct Answer: B) 273. 25. According to the kinetic theory, how do particles in a solid behave? A) They move freely in all directions. B) They are tightly packed and only vibrate in place. C) They slide past each other easily. D) They expand to fill any container. Show Answer Correct Answer: B) They are tightly packed and only vibrate in place. ← 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