Physics-Heat Engines

NEET Physics Heat Engines Assertion Reason Question

Type: Assertion Reason-assertion-Easy-Class 11

Assertion (A): In a heat engine operating at constant pressure, the change in enthalpy represents the heat absorbed by the system. | Reason (R): Enthalpy is a state function and independent of the path taken between initial and final states.

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 A

Detailed Explanation

In a heat engine at constant pressure, enthalpy change (ΔH) equals the heat absorbed (qp), and as a state function, enthalpy is path-independent.

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