Chemistry-(general)
NEET Chemistry (general) Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 11
Assertion (A): Work done on a system during isothermal compression at constant external pressure is positive. | Reason (R): The expression for work done on a system is given by w = -p_ex * ΔV, and during compression, ΔV is negative.
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.
Correct Answer
Option A
Detailed Explanation
During compression, ΔV is negative, making the term -p_ex * ΔV positive, thus work done on the system is positive. The reason correctly explains the assertion.
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