Q.

The average thermal kinetic energy per degree of freedom for a diatomic gas molecules, at temperature T is E. If the gas is monoatomic then the average thermal kinetic energy per degree of freedom at same temperature would be

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a

E/2

b

2E

c

E

d

3/5E

answer is A.

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Detailed Solution

For each degree of freedom, average thermal kinetic energy is equal to 12kBT (irrespective of atomicity)

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The average thermal kinetic energy per degree of freedom for a diatomic gas molecules, at temperature T is E. If the gas is monoatomic then the average thermal kinetic energy per degree of freedom at same temperature would be