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STANDARDPhysics-Kinetic Theory of Gases

STANDARD Physics Pressure and Temperature MCQ Question

Type: MCQ-numerical-Medium-Class 11

Pressure of a gas at constant volume is proportional to

A

total internal energy of the gas

B

average kinetic energy of the molecules

C

average potential energy of the molecules

D

total energy of the gas

Correct Answer

Option A

Detailed Explanation

Pressure, P = $\frac{1}{3} \frac{M}{V} v_{rms}^2 = \frac{2E}{3V}$ . Here, E = $\frac{1}{2} M v_{rms}^2$ is total internal energy of the gas. At constant volume, P ∝ E.

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