Physics-Kinetic Interpretation of Temperature

NEET Physics Kinetic Interpretation of Temperature Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 11

Assertion (A): The root mean square (rms) speed of molecules in a gas is directly proportional to the square root of temperature. | Reason (R): At a given temperature, lighter molecules have greater rms speed than heavier molecules.

A

Both A and R are true, and R is the correct explanation of A.

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

Correct Answer

Option B

Detailed Explanation

While both statements are true, the reason provided (R) explains the relationship between molecular mass and rms speed, not the direct proportionality between rms speed and the square root of temperature as stated in the assertion (A).

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