Assumptions of KTG

Q. The average velocity of molecules of a gas of molecular mass $M$ at temperature $T$ is

1. $0$
2. $\sqrt{\frac{3RT}{M}}$
3. $\sqrt{\frac{8RT}{\pi M}}$
4. $\sqrt{\frac{2RT}{M}}$

Q. Which one of the following is not an assumption of kinetic theory of gases?

1. The volume occupied by the molecules of the gas is negligible.
2. The force of attraction between the molecules is negligible.
3. The collision between the molecules are elastic.
4. All molecules have same speed.

Q. According to kinetic theory of gases, monoatomic ideal gases have

1. translational kinetic energy
2. rotational kinetic energy
3. vibrational kinetic energy
4. all of the above