MCQ Kinetic Theory of Gases, Class 11 Physics

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. At absolute zero temperature may be defined as that temperature at which

Volume is maximum

Root mean square velocity of the gas molecule reduces to zero

Temperature is 273 K

Mass of molecules of gas is zero

Your comments:

Question 1 of 10

2. Pressure exerted by an ideal gas molecule is given by the expression

P=MC²/V

P=M²/CV²

P=M/VC

P=MC²/3V

Your comments:

Question 2 of 10

3. If the r.m.s speed of oxygen at NTP is x m/s. If the gas is heated at constant pressure till its volume is four fold, what will be its final temperature and r.m.s speed?

2 m/s

3 m/s

8 m/s

4 m/s

Your comments:

Question 3 of 10

4. The perfect gas equation is PV = nRT where n is the

mass of molecules

number of moles

number of molecules

number of atoms

Your comments:

Question 4 of 10

5. In a mixture of ideal gases at a fixed temperature the heavier molecule has the lower average speed. This is easiest to conclude from the equation

A

B

C

D

Your comments:

Question 5 of 10

6. According to kinetic theory of gases, 0K is that temperature at which for an ideal gas

pressure is not zero

internal energy is zero

nearly all molecular motion becomes very rapid

volume is not zero

Your comments:

Question 6 of 10

7.

The kinetic energy of one mole of an ideal gas is E=3/2 RT. Then C_ρ will be

0.5R

1.5 R

2.5R

2.2 R

Your comments:

Question 7 of 10

8. Value of gas constant, R for one mole of a gas is independent of the

Atomicity of the gas

Mass of gas

Distance between two molecules of gas at 273 K

Volume of gas

Your comments:

Question 8 of 10

9. The pressure exerted by an ideal gas is numerically equal to _________ of the mean kinetic energy of translation per unit volume of the gas.

quarter

Two-third

Thrice

Twice

Your comments:

Question 9 of 10

10. The average kinetic energy of a molecule in an ideal gas is

proportional to the pressure

depends on the nature of the ideal gas.

proportional to the absolute temperature of the gas

proportional to the volume

Your comments:

Question 10 of 10

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