# NEET Physics Kinetic Theory of Gases Questions Solved

A vessel contains a mixture of one mole of oxygen and two moles of nitrogen at 300 K. The ratio of the average rotational kinetic energy per ${\mathrm{O}}_{2}$ molecule to that per ${\mathrm{N}}_{2}$ molecule is

1.  1 : 1

2.  1 : 2

3.  2 : 1

4.  Depends on the moments of inertia of the two molecules