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5 mole of an ideal gas expands reversibl...

5 mole of an ideal gas expands reversibly from a volume of `8" dm"^(3)" to "80" dm"^(3)` at a temperature of `27^(@)C.` The change in entropy is

A

`70.26 JK^(-1)`

B

`82.55 JK^(-1)`

C

`95.73 JK^(-1)`

D

`107.11 JK^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Entropy changes `(DeltaS)= 2.303 nRlog(V_(1)/V_(2)) = 2.303 xx 5 xx 8.314 xx log 80/8 = 95.73 JK^(-1)`
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