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Question

Temperature of argon kept in a vessel is raised by $1^{\circ} C$ at constant volume. Heat supplied to the gas may be taken partly as translational and remaining rotational kinetic energies. Their respective shares are

A

60 %, 40 %

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B

50 %, 50 %

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C

100 %,

zero

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D

40 %, 50 %

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Solution

The correct option is C $100 %,$ zero
Argon is monoatomic gas. It has three degrees of freedom for translational motion and zero degree of freedom for rotational motion. Hence, heat is totally used to increase kinetic energy of translational motion only.
Hence, the correct answer is option (c).

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