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Three moles of an idea gas expand slowly and isothermally from volume V to 2 V....

Three moles of an idea gas expand slowly and isothermally from volume V
to 2 V. What is the change in entropy of the gas in the process?
(A) 3Rln2
(B) 2Rln3
(C) 0
(D) -3Rln2
*R is the universal gas constant

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