Kinetic Theory MCQ Questions for Class 11 Physics Chapter 13 with Answers

NCERTCOURSE.COM given here the NCERT chapter-wise Multiple Choice Questions from Class 11 Physics book Chapter 13 Kinetic Theory with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Kinetic Theory. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

MCQ Class 11 Physics Chapter 13 With Answers

Q1. A hotter gas implies higher average value of:

(i) heat content
(ii) K.E.
(iii) total energy
(iv) internal energy

(ii) K.E.

Q2. A unit mass of solid converted to liquid at its melting point. Heat is required for this process is

(i) Specific heat
(ii) Latent heat of vaporization
(iii) Latent heat of fusion
(iv) External latent heat

(iii) Latent heat of fusion

Q3. Energy supplied to convert unit mass of substance from solid to liquid state at its melting point is called

(i) Latent heat of fusion
(ii) Evaporation
(iii) Solidification
(iv) Latent heat of fission

(i) Latent heat of fusion

Q4. Kinetic theory of gases provide a base for

(i) Both Charle’s law and Boyle’s law
(ii) None of these
(iii) Boyle’s law
(iv) Charle’s law

(i) Both Charle’s law and Boyle’s law

Q5. The law of equipartition of energy is applicable to the system whose constituents are:

(i) in orderly motion
(ii) at rest
(iii) in random motion
(iv) moving with constant speed

(iii) in random motion

Q6. A gas is taken in a sealed container at 300 K. it is heated at constant volume to a temperature 600 K. the mean K.E. of its molecules is

(i) Halved
(ii) Doubled
(iii) Tripled
(iv) Quadrupled

(ii) Doubled

Q7. Moon has no atmosphere because

(i) It is far away form the surface of the earth
(ii) Its surface temperature is 10°C
(iii) The r.m.s. velocity of all the gas molecules is more then the escape velocity of the moons surface
(iv) The escape velocity of the moons surface is more than the r.m.s velocity of all molecules

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

Q8. When a gas is in thermal equilibrium, its molecules

(i) have the same average kinetic energy of molecules
(ii) have different energies which remain constant
(iii) have a certain constant energy
(iv) do not collide with one another

(i) have the same average kinetic energy of molecules

Q9. Gases deviate from perfect gas behaviour because their molecules

(i) are polyatomic
(ii) are of very small size
(iii) don’t attract each other
(iv) interact with each other through intermolecular forces

(iv) interact with each other through intermolecular forces

Q10. Calculate the RMS velocity of molecules of a gas of which the ratio of two specific heats is 1.42 and velocity of sound in the gas is 500 m/s

(i) 727 m/s
(ii) 527 m/s
(iii) 927 m/s
(iv) 750 m/s

(i) 727 m/s

Q11. 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

(i) H²
(ii) F²
(iii) O²
(iv) Cl²

(i) H²

Q12. In kinetic theory of gases, it is assumed that molecules

(i) have same mass but negligible volume
(ii) have different mass as well as volume
(iii) have same volume but mass can be different
(iv) have same mass but can have different volume

(i) have same mass but negligible volume

Q13. Which of the following can be the basis of sesparating a mixture of gases?

(i) Graham’s law of diffusion
(ii) Avogadro’s law
(iii) Charle’s law
(iv) Boyle’s law

(i) Graham’s law of diffusion

Q14. Energy supplied to convert unit mass of substance from solid to liquid state at its melting point is called

(i) Latent heat of fusion
(ii) Evaporation
(iii) Solidification
(iv) Latent heat of fission

(i) Latent heat of fusion

Q15. Real gases show mark able deviation from that of ideal gas behavior at

(i) High temperature and low pressure
(ii) Low temperature and high pressure
(iii) High temperature and high pressure
(iv) Low temperature and low pressure

(ii) Low temperature and high pressure

Q16. The internal energy of a gram-molecule of an ideal gas depends on

(i) pressure alone
(ii) volume alone
(iii) temperature alone
(iv) both on pressure as well as temperature

(i) pressure alone

Q17. K.E. of gas molecules is zero at:

(i) 0°C
(ii) 273°t
(iii) -273°C
(iv) none of the above

(iii) -273°C

Q18. PV/3 = RT, V represents volume of

(i) Any amount of gas
(ii) 2 moles of gas
(iii) 3 moles of gas
(iv) 4 moles of gas

(iii) 3 moles of gas

Q19. The specific heat of a gas

(i) Has only one value
(ii) Has two values CP and CV
(iii) Is proportional to the square root of its absolute temperature
(iv) Can have any value between 0 and infinity

(iv) Can have any value between 0 and infinity

Q20. According to kinetic theory of gases, at absolute zero temperature

(i) molecular motion stops
(ii) liquid hydrogen freezes
(iii) liquid helium freezes
(iv) water freezes

(i) molecular motion stops

Q21. For an ideal gas

(i) Size of molecules is negligible.
(ii) There is no force of attraction or repulsion amongst the molecules.
(iii) It strictly obeys the gas laws.
(iv) All of the above.

(iv) All of the above.

Q22. Which of the following is the unit of specific

(i) J kg/°c
(ii) J/kg°c
(iii) kg °c/J
(iv) J kg/°c²

(ii) J/kg°c

Q23. One mole of an ideal gas requires 207 J heat to raise the temperature by 10 K, when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by 10K, then heat required is

(i) 96.6 J
(ii) 124 J
(iii) 198.8 J
(iv) 215.4 J

(ii) 124 J

Q24. Boyle’ law is applicable for an

(i) isothermal process
(ii) isochoric process
(iii) adiabatic process
(iv) isobaric process

(i) isothermal process

Q25. If r.m.s. speed of a gas increases, then its pressure :

(i) increases
(ii) decreases
(iii) remains same
(iv) may increase or decrease

(i) increases

Q26. The specific heat of a gas in isothermal process is

(i) Zero
(ii) Negative
(iii) Remains constant
(iv) Infinite

(iv) Infinite

Q27. The average kinetic energy of gas molecules depends upon which of the following factor?

(i) Temperature of the gas
(ii) Nature of the gas
(iii) Volume of the gas
(iv) None of these

(i) Temperature of the gas

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Class 11 Physics MCQ Questions Chapter wise with Answers

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