Kinetic Theory of Gases

Q.

When a molecule of a gas collides with the wall of a container it gets rebound and the momentum transferred to wall is equal to ___.

1. 

2. 

3. 

4. 

Q.

At constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with increase in temperature due to

1. Increase in the average molecular speed

2. Increased rate of collision amongst molecules

3. Increase in molecular attraction

4. Decrease in mean free path

Q.

The average distance travelled by the molecule between successive collision is called _____.

1. Collision path

2. Mean free path

3. Collision diameter

4. Collision distance

Q. Which of the following is true about gaseous state

1. Thermal energy = Molecular attraction

2. Thermal energy >> Molecular attraction

3. Thermal energy << Molecular attraction

4. Molecular forces >> Those in liquids

Q.

Which of the following is valid at absolute zero

1. Kinetic energy of the gas becomes zero but the molecular motion does not become zero

2. Kinetic energy of the gas becomes zero and molecular motion also becomes zero

3. Kinetic energy of the gas decreases but does not become zero

4. None of the above

Q.

Helium atom is two times heavier than a hydrogen molecule at 298 K, the average kinetic energy of helium is

1. Same as that of a hydrogen molecule

2. Two times that of a hydrogen molecule

3. Four times that of a hydrogen molecule

4. Half that of a hydrogen molecule

Q.

According to kinetic theory of gases, for a diatomic molecule

1. The pressure exerted by the gas is proportional to the mean velocity of the molecules

2. The pressure exerted by the gas is proportional to the root mean square velocity of the molecules

3. The root mean square velocity is inversely proportional to the temperature

4. The mean translational kinetic energy of the molecules is proportional to the absolute temperature

Q. An ideal gas obeying kinetic theory of gases can be liquefied if

1. Its pressure is more than critical pressure $P_C$
2. Its temperature is more than critical temperature $T_C$
3. Its pressure is more than $P_C$ at a temperature less than $T_C$
4. It cannot be liquefied at any value of P and T

Q. Kinetic energy of molecules is highest in

1. Gases

2. Liquids

3. Solutions

4. Solids

Q.

The kinetic theory of gases perdicts that total kinetic energy of a gaseous assembly depends on

1. Pressure, volume and temperature of the gas

2. Pressure of the gas

3. Volume of the gas

4. Temperature of the gas