The kinetic energy of an ideal gas depends upon its:

The volume occupied by $1$ mole of water vapor molecules at $STP$ is ..... (i.e.,Avogadro number $\times$ volume of one molecule).

Which among the following statements is correct?
$A$. There is a complete order of molecules in gases.
$B$. There is a complete disorder of molecules in gases.
$C$. Molecules are not always in random motion in gases.
$D$. Molecules are fixed at respective position in gases.

Which of the following represents the total kinetic energy of $1 \ mole$ of a gas?

Assertion $(A)$ At $300 \ K$, kinetic energy of $16 \ g$ of methane is equal to the kinetic energy of $32 \ g$ of oxygen.
Reason $(R)$ At constant temperature, kinetic energy of one mole of all gases is equal.

At the same temperature, the molecular speeds of two gases are $u_1$ and $u_2$, and their masses are $m_1$ and $m_2$, respectively. Which of the following expressions is correct?