Physics-(general)

NEET Physics (general) MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which of the following statements about the properties of gases according to the kinetic theory is correct?

A

Molecules of a gas are in constant random motion, and their speed distribution follows Maxwell's distribution.

B

The average speed of gas molecules is always the same regardless of temperature and pressure.

C

Molecules of gas collide elastically, but their speeds do not change after collisions.

D

The density of a gas is irrelevant to the average kinetic energy of its molecules.

Correct Answer

Option A

Detailed Explanation

According to the kinetic theory, gas molecules are in constant random motion, and their speed distribution is described by Maxwell's distribution function, which indicates varying speeds among molecules even under the same conditions.

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