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STANDARD Physics Heat Capacities MCQ Question

Type: MCQ-conceptual-Medium-Class 11

If for a gas $\frac{R}{C_v} = 0.67$ , this gas is made up of molecules which are

A

monatomic

B

diatomic

C

polyatomic

D

mixture of diatomic and polyatomic molecules

Correct Answer

Option A

Detailed Explanation

For a gas, we know $\frac{R}{C_v} = \gamma - 1$ . Given $0.67 = \gamma - 1$ , so $\gamma = 1.67$ . Hence the gas is monatomic.

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