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One mole of an ideal gas at 300 K in thermal contact with surroundings expands isothermally from 1.0 L to 2.0 L against a constant pressure of 3.0 atm. In this process, the change in entropy of surroundings ( Δ S surr ) in JK –1 is- (1 L atm = 101.3 J)

1. 5.763
2. 1.013
3. –1.013
4. –5.763

Correct answer: –1.013

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