Five moles of an ideal gas at 1 bar and 298 K is expanded into vacuum to double the volume. The work done is: v 2 1 2 1 2 1 (A) zero (B) (C (T – T ) (C) –RT (V – V ) (D) –RT ln V /V

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Question

Five moles of an ideal gas at 1 bar and 298 K is expanded into vacuum to double the volume. The work done is: v 2 1 2 1 2 1

(A) zero
(B) (C (T  – T )
(C) –RT (V  – V )
(D) –RT ln V /V

Prashant Kotian · Accepted Answer

Correct answer: A) ZERO. As the expansion is done in a vacuum that is in absence of external pressure Work done = zero

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