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A vessel contains a mixture of one mole of oxygen and two moles of nitrogen at 300K. The ratio of the average rorational kinetic energy per `O_2` molecules to that per `N_2` molecules is
A. `1:1`
B. `1:2`
C. `2:1`
D. depends on the moment of inertia of the two molecules

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Best answer
Correct Answer - A
Average rotational `KE = 2 xx (1)/(2) kT` (for diatomic gas)

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