The kinetic energy in $J$ of $1$ mole of $N_2$ at $27^{\circ} C$ is: $\left( R = 8.314 \ J \ mol^{-1} \ K^{-1} \right)$

$A$ helium molecule is two times heavier than a hydrogen molecule at $298 \ K$. According to the kinetic theory, the average kinetic energy of helium at $298 \ K$ is

According to the kinetic theory of gases,in an ideal gas,between two successive collisions a gas molecule travels

Explain the microscopic model of gases.

What happens when a gas is heated?

If the kinetic energy in $J$, of $CH_4$ (molar mass $= 16 \ g \ mol^{-1}$) at $T(K)$ is $X$, the kinetic energy in $J$, of $O_2$ (molar mass $= 32 \ g \ mol^{-1}$) at the same temperature is