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STANDARDPhysics-Kinetic Theory of Gases

STANDARD Physics Kinetic Energy Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 11

Assertion : The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume. Reason : The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.

A

Both assertion and reason are true and reason is the correct explanation for assertion.

B

Both assertion and reason are true but reason is not the correct explanation for assertion.

C

Assertion is true but reason is false.

D

Both assertion and reason are false.

Correct Answer

Option B

Detailed Explanation

The average translational kinetic energy of a gas molecule is E = 3/2 kT. For all gas molecules, E = 3/2 PV. The assertion is true as it correctly states the relationship, but the reason does not explain why this relationship holds.

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