Q.

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 O2 molecule to that of per N2 molecule is

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a

2 : 1

b

Depends on the moment of inertia of the two molecules

c

1 : 2

d

1 : 1

answer is A.

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Detailed Solution

detailed_solution_thumbnail

For diatomic gas, frotational = 2
O2 and N2 both are diatomic gases.

Hence, both have same average rotational kinetic energy.

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