Consider a gas with $n$ molecules. The average number of molecules moving in a fixed direction is ..........

The total random kinetic energy of $1 \,g$ of helium at $100 \,K$ will be $\left(R=8.3 \,J \,mol^{-1} \,K^{-1}\right)$. (in $\,J$)

At $27^{\circ}C$ temperature,the kinetic energy of an ideal gas is $E_1$. If the temperature is increased to $327^{\circ}C$,then the kinetic energy would be:

If $10^{22}$ gas molecules,each of mass $10^{-26} \ kg$,collide with a surface (perpendicular to it) elastically per second over an area of $1 \ m^2$ with a speed of $10^4 \ m/s$,the pressure exerted by the gas molecules will be of the order of:

Absolute temperature can be calculated by

One kg of a diatomic gas is at a pressure of $8 \times 10^4 \ N/m^2$. The density of the gas is $4 \ kg/m^3$. What is the energy of the gas due to its thermal motion?