Chemistry-(general)
NEET Chemistry (general) Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 11
Assertion (A): In an isothermal expansion of an ideal gas into a vacuum, the internal energy of the gas remains unchanged. | Reason (R): The work done by the gas during expansion into a vacuum is zero.
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 an isothermal expansion of an ideal gas into a vacuum, both the internal energy change (ΔU) and work done (w) are zero, hence R correctly explains A as per Chunk 2.
Found an issue with this question?