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5 mol of an ideal gas expands reversibly...

`5 mol` of an ideal gas expands reversibly from a volume of `8 dm^(3)` at a temperature of `27^(@)C`. Calculate the chngae in entropy.

A

`70.26 J K^(-1)`

B

`80.55 J K^(-1)`

C

`95.73 J K^(-1)`

D

`107.11 J K^(-1)`

Text Solution

Verified by Experts

Entropy change `(DeltaS) = 2.303 nRT "log"(V_(2))/(V_(1))`
`= 2.303 xx5xx 8.314 xx "log"(80)/(8)`
`= 95.73 J K^(-1)`
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