At what temperature in $^\circ C$ is the average molecular kinetic energy of any gas double that of its value at $20^\circ C$?

Assuming the expression for the pressure exerted by the gas, it can be shown that pressure is

Write the equation relating pressure,volume,and internal energy of an ideal gas.

At $...... ^\circ C$ temperature,the mean kinetic energy of ${O_2}$ molecules will be the same as that of ${H_2}$ molecules at $-73^\circ C$.

If the number of molecules of ${H_2}$ is double that of ${O_2}$,then the ratio of the kinetic energy of hydrogen to that of oxygen at $300 \, K$ is:

$A$ container has $N$ molecules at absolute temperature $T$. If the number of molecules is doubled but the total kinetic energy in the box remains the same as before,the absolute temperature of the gas is ...........