NCERT Class 11 Chapter 13 Physics Kinetic Theory MCQ

NCERT Class 11 Chapter 13 Physics Kinetic Theory MCQ | Questions & Answers: Do you wish to know new concepts about the NCERT Class 11 Chapter 13 Physics Kinetic Theory? then attempt the below provided Online MCQ Quiz, which will help you in enhancing your existing knowledge.

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1. Kinetic theory of gases provide a base for

A. Both Charle’s law and Boyle’s law

B. None of these

C. Boyle’s law

D. Charle’s law

2. When do real gases approach the ideal gas behaviour ?

A. At low pressure and high temperature

B. At high pressure and high temperature

C. At high pressure and low temperature

D. At low pressure and low temperature

3. According to the kinetic theory of gases, the pressure exerted by a gas on the wall of the container is measured as

A. rate of change of momentum imparted to the walls per second per unit area

B. momentum imparted to the walls per unit area

C. change of momentum imparted to the walls per unit area

D. change in momentum per unit volume

4. When a gas is in thermal equilibrium, its molecules

A. have the same average kinetic energy of molecules

B. have different energies which remain constant

C. have a certain constant energy

D. do not collide with one another

5. Molecules of a ideal gas behave like

A. perfectly elastic rigid sphere

B. inelastic non-rigid sphere

C. perfectly elastic non-rigid sphere

D. inelastic rigid sphere

6. In kinetic theory of gases, it is assumed that molecules

A. have same mass but negligible volume

B. have different mass as well as volume

C. have same volume but mass can be different

D. have same mass but can have different volume

7. The internal energy of a gram-molecule of an ideal gas depends on

A. pressure alone

B. volume alone

C. temperature alone

D. both on pressure as well as temperature

8. The phenomenon of Browninan movement may be taken as evidence of

A. kinetic theory of matter

B. electromagnetic theory of radiation

C. corpuscular theory of light

D. photoelectric phenomenon

9. According to kinetic theory of gases, at absolute zero temperature

A. molecular motion stops

B. liquid hydrogen freeze

C. liquid helium freezes

D. water freezes

10. At a given temperature the force between molecules of a gas as a function of intermolecular distance is

A. first decreases and then increases

B. always increases

C. always decreases

D. always constant

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11. For Boyle’s law to hold, the gas should be

A. perfect and of constant mass and temperature

B. real and of constant mass and temperature

C. perfect and constant temperature but variable mass

D. real and constant temperature but variable mass

12. Boyle' law is applicable for an

A. isothermal process

B. isochoric process

C. adiabatic process

D. isobaric process

13. The deviation of gases from the behaviour of ideal gas is due to

A. attraction of molecules

B. absolute scale of temp

C. covalent bonding of molecules

D. colourless molecules

14. In a mixture of gases at a fixed temperature

A. heavier molecule has lower average speed

B. lighter molecule has lower average speed

C. heavier molecule has higher average speed

D. None of these

15. The average kinetic energy of gas molecules depends upon which of the following factor?

A. Temperature of the gas

B. Nature of the gas

C. Volume of the gas

D. None of these

16. The temperature of a gas is a measure of

A. the average kinetic energy of the gaseous molecules

B. the average potential energy of the gaseous molecules

C. the average distance between the molecules of the gas

D. the size of the molecules of the gas

17. In the isothermal expansion of 10g of gas from volume V to 2V the work done by the gas is 575J. What is the root mean square speed of the molecules of the gas at that temperature?

A. 499m/s

B. 532m/s

C. 520m/s

D. 398m/s

18. In a diatomic molecules, the rotational energy at a given temperature

A. obeys Maxwell’s distribution

B. have the same volue for all molecules

C. equals the translational kinetic energy for each molecule

D. None of these

19. Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will

A. remains the same

B. decrease for some and increase for others

C. decrease

D. increase

20. Pressure exerted by a gas is

A. directly proportional to the density of the gas

B. directly proportional to the square of the density of the gas

C. inversely proportional to the density of the gas

D. independent of density of the gas

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21. Real gases show mark able deviation from that of ideal gas behavior at

A. High temperature and low pressure

B. Low temperature and high pressure

C. High temperature and high pressure

D. Low temperature and low pressure

22. One mole of mono atomic gas (g = 5/3) is mixed with one mole of diatomic gas (g = 7/5) what will be the value of g for the mixture?

A. 1.5

B. 2.5

D. 2

23. A room temperature the r.m.s. velocity of the molecules of a certain diatomic gas is found to be 1930 m/sec. the gas is

A. H²

B. F²

C. O²

D. Cl²

24. The temperature at which the r.m.s. velocity of H² becomes escape velocity from the earth is,

A. 10059°C

B. 10059 K

C. 10332°C

D. 10332 K

25. Moon has no atmosphere because

A. It is far away form the surface of the earth

B. Its surface temperature is 10°C

C. The r.m.s. velocity of all the gas molecules is more then the escape velocity of the moons surface

D. The escape velocity of the moons surface is more than the r.m.s velocity of all molecules