The total kinetic energy of $0.6 \ mol$ of an ideal gas at $27 \ ^oC$ is .......... $J$.

The diffusion coefficient of an ideal gas is proportional to its mean free path and mean speed. The absolute temperature of an ideal gas is increased $4$ times and its pressure is increased $2$ times. As a result,the diffusion coefficient of this gas increases $x$ times. The value of $x$ is

Given that the atomic weights of carbon,nitrogen,and oxygen are $12$,$14$,and $16$ respectively,which of the following pairs of gases will diffuse at the same rate?

If a gas expands at constant temperature,it indicates that

Assertion : Gases do not settle to the bottom of a container.
Reason : Gases have high kinetic energy.

As the temperature is raised from $20\,^{\circ}C$ to $40\,^{\circ}C$,the average kinetic energy of neon atoms changes by a factor of which of the following?