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When 5 moles of an ideal gas is expended...

When 5 moles of an ideal gas is expended at 350 K reversibly from 5 L to 40 L, then the entropy change for the process is (R = 2 cal `mol^-1 K^-1`)

A

`9.01 cal K^(-1)`

B

`20.8 cal K^(-1)`

C

`-15.2 cal K^(-1)`

D

`22.3 cal K^(-1)`

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