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 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 15 Kinetic Theory Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which statement describes the particles of an ideal gas based on the kinetic molecular theory? A) The gas particles are relatively far apart and have negligible volume. B) The gas particles are in constant, nonlinear motion. C) The gas particles have attractive forces between them. D) The gas particles have collisions without transferring energy. Show Answer Correct Answer: A) The gas particles are relatively far apart and have negligible volume. 2. Sugar is what type of solid? A) Crystalline. B) Amorphous. C) Neither. D) None of the above. Show Answer Correct Answer: A) Crystalline. 3. What is required for a liquid to become a gas during boiling? A) Particles must gain enough energy to escape into the air. B) Particles must turn directly into a solid. C) Particles must lose thermal energy. D) Particles must become fixed in place. Show Answer Correct Answer: A) Particles must gain enough energy to escape into the air. 4. All matter is composed of tiny ..... A) Bricks. B) Minions. C) Blocks. D) Particles. Show Answer Correct Answer: D) Particles. 5. Which name describes the process whereby a solid changes to a gas with no liquid phase A) Deposition. B) Sublimation. C) Melting. D) Evaporating. Show Answer Correct Answer: B) Sublimation. 6. The temperature scale that we have to use when doing gas calcualtions is A) Farenheit. B) Centigrade. C) Celcius. D) Kelvin. Show Answer Correct Answer: D) Kelvin. 7. The particles in the liquid phase of a substance have ..... kinetic energy than the particles of that substance when they are in the solid phase. A) Same. B) Less. C) More. D) None of the above. Show Answer Correct Answer: C) More. 8. Which of the following statements are true regarding the kinetic molecular theory? A) Particles in gases have no energy. B) Particles are always in motion. C) Particles in solids have no motion. D) Particles have volume. Show Answer Correct Answer: B) Particles are always in motion. 9. The number of degrees of freedom of polyatomic gas is A) 5. B) 3. C) 6. D) 4. Show Answer Correct Answer: C) 6. 10. What happens to the pressure of a gas if its temperature is increased while keeping the volume constant? A) The pressure decreases. B) The pressure increases. C) The pressure remains constant. D) The pressure becomes zero. Show Answer Correct Answer: B) The pressure increases. 11. What is it called when a solid turns directly into a gas? A) Ionization. B) Liquid. C) Condensation. D) Sublimation. Show Answer Correct Answer: D) Sublimation. 12. Indicate which of these characteristics correspond to evaporation (E) and which correspond to boiling (B):It occurs at a given temperature A) Evaporation. B) Boiling. C) All the above. D) None of the above. Show Answer Correct Answer: B) Boiling. 13. At a given temperature, the specific heat of a gas at a constant pressure is always greater than its specific heat at constant volume. (True/False) A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. The attractive forces between the particles in a gas are: A) Strong. B) Weak. C) In-between. D) None of the above. Show Answer Correct Answer: B) Weak. 15. When gas particles collide with other particles, they ..... A) Travel in a random directions. B) Lose energy and slow down. C) Stop motion. D) Rebound elastically away from the other particle. Show Answer Correct Answer: D) Rebound elastically away from the other particle. 16. A piece of solid metal melts to become a liquid. How do the particles of metal or their behaviour change?0625/23/M/J/24 A) They move much further apart. B) They vibrate more about their fixed positions. C) They move around each other. D) They increase in size. Show Answer Correct Answer: C) They move around each other. 17. Solids have high densities because A) Particles are always in continuous and random motion. B) Particles are bigger than those in liquid and gas. C) Particles are closely packed together. D) Particles are smaller than those in liquid and gas. Show Answer Correct Answer: C) Particles are closely packed together. 18. Temperature is a measure of a substance's average A) Kinetic energy. B) Density. C) Electrostatic force. D) Heat. Show Answer Correct Answer: A) Kinetic energy. 19. When the motion of particles in the hotter part transfer their energy through vibrations to nearby ones it is what type of heat transfer ..... A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Conduction. 20. What does root-mean-square velocity represent? A) It represents the average velocity of particles in a gas. B) It represents the total energy of particles in a gas. C) It measures the pressure exerted by gas particles. D) It indicates the temperature of the gas particles. Show Answer Correct Answer: A) It represents the average velocity of particles in a gas. 21. According to the Combined Gas Law, pressure and volume are inversely related which means that A) When pressure increases, volume increases. B) When pressure increases, volume decreases. C) When pressure decreases, volume decreases. D) When pressure doubles, volume triples. Show Answer Correct Answer: B) When pressure increases, volume decreases. 22. What are the units of relative molecular mass? A) Kg. B) No units. C) Amu's. D) G. Show Answer Correct Answer: B) No units. 23. According to Distribution Law, r.m.s speed is A) $\sqrt{\frac{8KT}{m\pi}}$. B) $\sqrt{\frac{3kT}{m}}$. C) $\sqrt{\frac{2kT}{m}}$. D) $\sqrt{\frac{3kT}{m\pi}}$. Show Answer Correct Answer: B) $\sqrt{\frac{3kT}{m}}$. 24. A gas occupies 4.98 L at 2.6 atm of pressure. What volume does it occupy at 1.8 atm pressure? A) 3.44 L. B) 7.2 L. C) 0.72 L. D) 12.9 L. Show Answer Correct Answer: B) 7.2 L. 25. Particles are tightly packed together, usually into geometric shapes. A) Bose-Einstein Condensate. B) Gas. C) Plasma. D) Liquid. E) Solid. Show Answer Correct Answer: E) Solid. 26. Which of the following is a real-world application of the kinetic theory of gases? A) Explaining the behavior of air in a car tire. B) Describing the motion of planets. C) Understanding the structure of solids. D) Analyzing the flow of electricity. Show Answer Correct Answer: A) Explaining the behavior of air in a car tire. 27. The temperature at which a phase change occurs turning a liquid into a solid. A) Boiling Point. B) Heat of Fusion. C) Heat of Vaporization. D) Melting Point. Show Answer Correct Answer: D) Melting Point. 28. Does a liquid need to be heated to a certain temperature in order to evaporate? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 29. State what is meant by the internal energy of a matter. A) It is the sum of kinetic energy of the particles. B) It is the sum of potential energy of the particles. C) It is the sum of kinetic and potential energy of the particles in random motion. D) It is the ratio of kinetic to potential energy of the particles. Show Answer Correct Answer: C) It is the sum of kinetic and potential energy of the particles in random motion. 30. According to the Kinetic Theory, what is the effect of increasing the number of gas particles in a container at constant volume and temperature? A) Pressure becomes zero. B) Pressure decreases. C) Pressure increases. D) Pressure remains constant. Show Answer Correct Answer: C) Pressure increases. 31. In which state do the particles have the strongest attractive force amongst them. A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: A) Solid. 32. Gases have a(n) ..... shape. A) Definite. B) Indefinite. C) All the above. D) None of the above. Show Answer Correct Answer: B) Indefinite. 33. Which of the following is true when particles gain thermal energy? A) Particles move more slowly. B) Particles move closer together. C) Particles stop moving. D) Particles move further apart. Show Answer Correct Answer: D) Particles move further apart. 34. Brownian motion is the random and irregular motion of ..... molecules. A) Gas and liquid. B) Solid and liquid. C) Solid and gas. D) Solid, gas and liquid. Show Answer Correct Answer: A) Gas and liquid. 35. For a gas, which pair of variables are inversely proportional to each other (if all other conditions remain constant)? A) P, V. B) N, P. C) V, T. D) P, T. Show Answer Correct Answer: A) P, V. 36. The movement of gas molecules is greatly affected by ..... A) Temperature of the container. B) Size of the container. C) All the above. D) None of the above. Show Answer Correct Answer: A) Temperature of the container. 37. If the volume of a gas is decreased while the temperature remains constant, what will happen to the pressure? A) Increase. B) Stay the same. C) Decrease. D) It will explode. Show Answer Correct Answer: A) Increase. 38. How does the kinetic theory explain the process of evaporation in liquids? A) Particles gain energy and move to the surface, escaping into the air. B) Particles lose energy and sink to the bottom. C) Particles form a solid layer on the surface. D) Particles remain stationary and do not change state. Show Answer Correct Answer: A) Particles gain energy and move to the surface, escaping into the air. 39. How does temperature affect the kinetic energy of particles? A) Kinetic energy is independent of temperature. B) Temperature has no effect on kinetic energy. C) Temperature directly affects the kinetic energy of particles; higher temperature means higher kinetic energy. D) Lower temperature increases kinetic energy. Show Answer Correct Answer: C) Temperature directly affects the kinetic energy of particles; higher temperature means higher kinetic energy. 40. The temperature of a gas is doubled (i) on absolute scale (ii) on centrigrade scale. The increase in root mean square velocity of gas will be A) More in case (i). B) More in case (ii). C) Same in both case. D) Information not sufficient. Show Answer Correct Answer: A) More in case (i). 41. Which below best describes condensation A) Vapour to liquid. B) Liquid to gas. C) Solid to liquid. D) Gas to solid. Show Answer Correct Answer: A) Vapour to liquid. 42. The corrected gas equation for real gases is given by A) $\left(p+\frac{a}{V^2}\right)\left(V-b\right)=RT$. B) $\left(p+\frac{a}{V^2}\right)\left(V+b\right)=RT$. C) $\left(p-\frac{a}{V^2}\right)\left(V-b\right)=RT$. D) $\left(p-\frac{a}{V^2}\right)\left(V+b\right)=RT$. Show Answer Correct Answer: A) $\left(p+\frac{a}{V^2}\right)\left(V-b\right)=RT$. 43. Which of the following statements describes a liquid? A) It has a fixed volume. B) It becomes the volume of it's container. C) All the above. D) None of the above. Show Answer Correct Answer: A) It has a fixed volume. 44. Temperature is a measure of particle ..... A) Kinetic energy. B) Size. C) Colour. D) Electrostatic force. Show Answer Correct Answer: A) Kinetic energy. 45. Describe an ideal gas. A) An ideal gas is a gas that can be liquefied at room temperature and pressure. B) An ideal gas is a gas that exists only in solid form under extreme conditions. C) An ideal gas is a gas that has a high density and strong intermolecular forces. D) An ideal gas is a theoretical gas that perfectly follows the ideal gas law, with no intermolecular forces and negligible volume. Show Answer Correct Answer: D) An ideal gas is a theoretical gas that perfectly follows the ideal gas law, with no intermolecular forces and negligible volume. 46. Solids and liquids are difficult to compress, but gases are easy to compress. This is because gas molecules, compared to solid and liquid molecules ..... A) Are moving very rapidly. B) Are arranged in a random order in space. C) Are spaced far apart. D) Are very numerous. Show Answer Correct Answer: C) Are spaced far apart. 47. Formula to calculate pressure A) P = F / A. B) P = F-A. C) P = F A. D) P = F + A. Show Answer Correct Answer: A) P = F / A. 48. Define an adiabatic process. A) An adiabatic process occurs at constant pressure. B) An adiabatic process requires a heat source to function. C) An adiabatic process involves the transfer of heat to the system. D) An adiabatic process is one in which no heat is transferred to or from the system. Show Answer Correct Answer: D) An adiabatic process is one in which no heat is transferred to or from the system. 49. Between ice, water and steam, which has a definite shape? A) Ice. B) Water. C) Steam. D) None of the above. Show Answer Correct Answer: A) Ice. 50. Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. A) 207 K. B) 0 K. C) 307 K. D) 107 K. Show Answer Correct Answer: C) 307 K. 51. Standard temperature and pressure (STP) mean A) A temperature of 0$^\circ$C and a pressure of 101.3 kPa, or 1 atmosphere (atm). B) A temperature of 100$^\circ$C and a pressure of 101.3 kPa, or 1 atmosphere (atm). C) A temperature of 0$^\circ$K and a pressure of 10 atmosphere (atm). D) None of the above. Show Answer Correct Answer: A) A temperature of 0$^\circ$C and a pressure of 101.3 kPa, or 1 atmosphere (atm). 52. ..... gaseous particles come closer together and form a liquid or solid A) Condensation. B) Evaporation. C) Sublimation. D) Distillation. Show Answer Correct Answer: A) Condensation. 53. The number of degrees of freedom of monoatomic gas is: A) 3. B) 5. C) 4. D) 6. Show Answer Correct Answer: A) 3. 54. True or False:All substances need the same amount of energy to change phase A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 55. If an atom has no charge, which of the following must be true? A) It has more neutrons than protons or electrons. B) There are only neutrons inside the atom. C) Its number of protons is equal to its number of electrons. D) The neutrons in the atom outnumber the electrons and protons. Show Answer Correct Answer: C) Its number of protons is equal to its number of electrons. 56. Which statement about solids, liquids and gases is correct? A) In a gas, particles move slowly downwards due to the force of gravity. B) In a liquid, particles move slowly in some directions only. C) In a solid, particles vibrate about fixed positions. D) Liquids and gases can be easily compressed. Show Answer Correct Answer: C) In a solid, particles vibrate about fixed positions. 57. Using a microscope, Peter observes that some pollen grains suspended in water move in an irregular manner. This is due to the A) Pollen grains colliding with one another. B) Bombardment of pollen grains by water molecules. C) Pollen grains repelling one another. D) Bombardment of water molecules by pollen grains. Show Answer Correct Answer: B) Bombardment of pollen grains by water molecules. 58. Even though they have more energy than solid particles, liquid particles are still stuck in a crystalline structure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 59. What effect will adding heat energy have on particles in a substance? A) The particles will speed up and spread out. B) The particles will slow down and move closer together. C) The particles will slow down and spread out. D) The particles will speed up and move closer together. Show Answer Correct Answer: A) The particles will speed up and spread out. 60. The main idea of the Kinetic Molecular Theory is that all molecules have A) Motion/movement. B) Mass. C) Volume. D) Moles. Show Answer Correct Answer: A) Motion/movement. ← 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books