NEETPhysics-Kinetic Theory of Gases

NEET Physics RMS Speed Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 11

A gas mixture consists of molecules of A, B and C with masses mₐ > m_b > m_c at a fixed temperature. Statement 1: Rms speed order is (v_rms)_c > (v_rms)_b > (v_rms)_a. Statement 2: Average Kinetic energy order is K_c > K_b > K_a.

A

Statement 1 is True, Statement 2 is false.

B

Statement 1 is False, Statement 2 is True.

C

Both Statements are True.

D

Both statements are False.

Correct Answer

Option A

Detailed Explanation

Rms speed is inversely proportional to the square root of mass, while average kinetic energy is the same for all gases at the same temperature.

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