This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which state of matter listed here has particles spread the furthest apart? A) Solid. B) Gas. C) Liquid. D) Missouri. Show Answer Correct Answer: B) Gas. 2. A given quantity of an ideal gas is at pressure p and absolute temperature T. The isothermal bulk modulus of the gas is, A) $\frac{3p}{2}$. B) $\gamma p$. C) $p$. D) $\frac{2p}{3}$. Show Answer Correct Answer: C) $p$. 3. It is the most abundant state of matter in the universe. A) Solid. B) Bose-Einstein Condensate. C) Gas. D) Plasma. E) Liquid. Show Answer Correct Answer: D) Plasma. 4. The kinetic theory states A) Particles won't move if you don't apply energy to it. B) Particles only move in liquids and gases. C) Particles are always in motion. D) At the same temperature the object that has the most mass heats quicker. Show Answer Correct Answer: C) Particles are always in motion. 5. Which of the following best describe what happens when a solid changes to a gas? A) The particles stop moving. B) Thermal energy is released. C) Thermal energy is absorbed. D) There is no energy change. Show Answer Correct Answer: C) Thermal energy is absorbed. 6. Pressure is defined as A) Distance divided by time. B) Force divided by area. C) Mass divided by volume. D) None of the above. Show Answer Correct Answer: B) Force divided by area. 7. What is the name of the process by which particles of matter fill a space because of random motion? (NOT the name of the motion!) A) Dilution. B) Diffusion. C) Brownian motion. D) Waftage. Show Answer Correct Answer: B) Diffusion. 8. Which scale directly relates the average kinetic energy of particles? A) Celsius. B) Fahrenheit. C) Antimony. D) Kelvin. Show Answer Correct Answer: D) Kelvin. 9. In which state of matter are the forces between molecules the strongest, and the speed of the molecules the greatest, respectively? A) Solid, solid. B) Liquid, solid. C) Solid, gas. D) Liquid, gas. Show Answer Correct Answer: C) Solid, gas. 10. The average molecular kinetic energy of a gas can be determined by knowing only A) The number of molecule in the gas. B) The volume of the gas. C) The preassure of the gas. D) The tempreature of the gas. Show Answer Correct Answer: D) The tempreature of the gas. 11. Which form of energy possessed by molecules is related to temperature? A) Chemical potential. B) Kinetic. C) Nuclear. D) Gravitational potential. Show Answer Correct Answer: B) Kinetic. 12. Which gas law explains why a balloon expands when heated? A) Boyle's Law. B) Charles's Law. C) Dalton's Law. D) Avogadro's Law. Show Answer Correct Answer: B) Charles's Law. 13. Collisions between gas particles are said to be "elastic" because ..... A) They have a stretchy waistband. B) Kinetic energy is lost between particles. C) Kinetic energy is not lost between particles and is instead transferred. D) Particles move in a straight line. Show Answer Correct Answer: C) Kinetic energy is not lost between particles and is instead transferred. 14. What real-world application relies on the principles of the kinetic theory of liquids? A) Developing superconductors for electronics. B) Building solar panels for energy. C) Creating hydraulic systems for machinery. D) Designing airplanes to fly at high altitudes. Show Answer Correct Answer: C) Creating hydraulic systems for machinery. 15. Are there molecules moving at all in a solid brick? A) Yes, but only vibrating. B) No, they don't move at all. C) Yes, they move freely and randomly. D) None of the above. Show Answer Correct Answer: A) Yes, but only vibrating. 16. Adding energy to water causes the water particles to ..... A) Speed up. B) Slow down. C) All the above. D) None of the above. Show Answer Correct Answer: A) Speed up. 17. Particles (molecules) in a ..... have more energy than the other states of matter. A) Gas. B) Solid. C) Liquid. D) None of the above. Show Answer Correct Answer: A) Gas. 18. Which of the following best explains why liquids have a definite volume but no definite shape? A) Particles are tightly packed and cannot move. B) Particles are loosely packed and can move past one another. C) Particles are ionized and repel each other. D) Particles are in fixed positions and vibrate. Show Answer Correct Answer: B) Particles are loosely packed and can move past one another. 19. Which of the following assumptions is incorrect according to kinetic theory of gases? A) Particles of a gas move in all possible directions in straight lines. B) The actual volume of the gas is negligible in comparison to the empty space between them. C) There is no force of attraction between the particles of a gas at ordinary temperatures and pressures. D) All the partcles, at any particular time have the same speed and same kinetic energy. Show Answer Correct Answer: D) All the partcles, at any particular time have the same speed and same kinetic energy. 20. Which is NOT an assumption made by the kinetic molecular theory of gases? A) Gas particles are small and take up little volume. B) Particles travel in constant, random, straight-line motion until colliding. C) When particles collide, their total kinetic energy is decreased. D) Particles do not attract or repel each other. Show Answer Correct Answer: C) When particles collide, their total kinetic energy is decreased. 21. An ideal gas is that which can A) Not be solidified. B) Liquefied. C) Be solidified. D) Not be liquefied. Show Answer Correct Answer: D) Not be liquefied. 22. Convert:212 F to C: A) 100 K. B) 100 F. C) 50 C. D) 100 C. Show Answer Correct Answer: D) 100 C. 23. The tiny particle that makes up Protons and Neutrons that comes in 6 "flavors" is called what? A) Gluon. B) Muon. C) Photon. D) Quark. Show Answer Correct Answer: D) Quark. 24. What type of relationship to pressure and volume have? A) I don't know. B) No relationship. C) Direct. D) Inverse. Show Answer Correct Answer: D) Inverse. 25. Which gas deviates the most from ideal behavior? A) He. B) H$_{2}$O. C) CH$_{4}$. D) Cl$_{2}$. Show Answer Correct Answer: B) H$_{2}$O. 26. How do particles in a gas behave according to the kinetic theory? A) They are tightly packed and vibrate in place. B) They are close together and slide past each other. C) They are far apart and move freely in all directions. D) They are fixed in a rigid structure. Show Answer Correct Answer: C) They are far apart and move freely in all directions. 27. Charles's Law relates which 2 variables? A) Pressure and volume. B) Temperature and pressure. C) Temperature and volume. D) Amount and volume. Show Answer Correct Answer: C) Temperature and volume. 28. What does NOT happen when the temperature is increased? A) Particles collide more often. B) More particles collide in the correct orientation. C) Particles collide with more energy. D) Particles move faster. Show Answer Correct Answer: B) More particles collide in the correct orientation. 29. ..... process by which particles of a solid escape from its surface and form a gas A) Sublimation. B) Evaporation. C) Condensation. D) Boiling. Show Answer Correct Answer: A) Sublimation. 30. 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. 31. 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. 32. What is 0 degrees Celsius converted into Kelvin? A) 273 K. B) 0 K. C) 200 K. D) 32 K. Show Answer Correct Answer: A) 273 K. 33. What is the impact of cooling on the motion of liquid particles according to the Kinetic Theory? A) Particles move slower. B) Particles move in a fixed pattern. C) Particles stop moving. D) Particles move faster. Show Answer Correct Answer: A) Particles move slower. 34. 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/10. B) 10 mv. C) Mv. D) 5 mv. Show Answer Correct Answer: B) 10 mv. 35. 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. 36. 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. 37. At room temperature, ..... and ..... are the two gases which shows heating effect on adiabatic expansion through porous plug. A) Hydrogen, Oxygen. B) Nitrogen, Helium. C) Oxygen, Carbon di Oxide. D) Helium, Hydrogen. Show Answer Correct Answer: D) Helium, Hydrogen. 38. The octet rule means that all valence shells want to have the number ..... A) 9. B) 16. C) 8. D) 1. Show Answer Correct Answer: C) 8. 39. What is the relationship between temperature and volume when pressure is kept constant? A) They are directly proportional. B) They are directly proportional only at high temperatures. C) They are unrelated. D) They are inversely proportional. Show Answer Correct Answer: A) They are directly proportional. 40. Following gases are kept at the same temperature. Which gas possesses maximum r.m.s. speed? A) Hydrogen. B) Oxygen. C) Carbon dioxide. D) Nitrogen. Show Answer Correct Answer: A) Hydrogen. 41. 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. 42. 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 quadruples. B) The volume doubles. C) The volume remains the same. D) The volume halves. Show Answer Correct Answer: B) The volume doubles. 43. Which statement correctly describes a change of state?0625/22/F/M/24 A) A solid condenses to form a liquid. B) A gas condenses to form a liquid. C) A solid boils to form a gas. D) A liquid melts to form a solid. Show Answer Correct Answer: B) A gas condenses to form a liquid. 44. 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 is halved. B) The volume remains the same. C) The volume quadruples. D) The volume doubles. Show Answer Correct Answer: A) The volume is halved. 45. Define mean-free-path in a gas system. A) The mean-free-path is the total distance a gas molecule can travel without any external forces. B) The mean-free-path in a gas system is the average distance a molecule travels between collisions. C) The mean-free-path is the maximum distance a gas molecule can travel in a vacuum. D) Mean-free-path refers to the time taken for a molecule to collide with another molecule. Show Answer Correct Answer: B) The mean-free-path in a gas system is the average distance a molecule travels between collisions. 46. Pick the best answer to explain all properties of gases ..... A) They're solids Can be compressedLots of space between particles. B) They're fluids Can be compressedLittle space between particles. C) Can be compressedLots of space between particles. D) They're fluids Cannot be compressedLots of space between particles. Show Answer Correct Answer: C) Can be compressedLots of space between particles. 47. 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. 48. Part of the Ideal Gas Law states that gases are composed of tiny particles with ..... A) Very significant volume. B) Insignificant volume. C) No mass. D) Huge mass. Show Answer Correct Answer: B) Insignificant volume. 49. 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) Thesquare of the average speed of the gas molecules. B) Theroot-mean-square of the gas molecules. C) Theaverage of the squares of the speeds of the gas molecules. D) Thesum of the squares of the speeds of the gas molecules. Show Answer Correct Answer: C) Theaverage of the squares of the speeds of the gas molecules. 50. 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. 51. How many atoms are in this molecule? C$_{6}$H$_{12}$O$_{6}$ A) 18. B) 12. C) 24. D) 6. Show Answer Correct Answer: C) 24. 52. The locus of all points at which the Joule-Kelvin coefficient is ..... is the inversion curve. A) Infinity. B) Zero. C) Positive. D) Negative. Show Answer Correct Answer: B) Zero. 53. What is 300 K in $^{O}$C A) 300. B) 273. C) 27. D) 246. Show Answer Correct Answer: B) 273. 54. 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. 55. A unit or counting number used to show a large amount or quantity of particles A) Temperature. B) Pressure. C) Volume. D) Moles. Show Answer Correct Answer: D) Moles. 56. The heat absorbed when 1 kg of a liquid vaporizes at its normal boiling point is called ..... A) Heat of vaporization. B) Heat of fusion. C) Vapor pressure. D) Vaporization. Show Answer Correct Answer: A) Heat of vaporization. 57. Compared to the particles in liquids and gases, the particles in solids have a ..... amount of energy. A) Small. B) Medium. C) Large. D) Super size. Show Answer Correct Answer: A) Small. 58. The Kinetic Theory of Matter states that all matter is made of atoms/molecules that are in constant A) Chaos. B) Collisions. C) Motion. D) None of the above. Show Answer Correct Answer: C) Motion. 59. Convert:-194 C to F: A) 0 K. B) -273 C. C) -317.2 F. D) 338.5 K. Show Answer Correct Answer: C) -317.2 F. 60. The sub-atomic particle that is so small that the mass is nearly zero is called what? A) Proton. B) Quark. C) Neutron. D) Electron. Show Answer Correct Answer: D) Electron. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books