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One mole of a perfect gas expands isothe...

One mole of a perfect gas expands isothermally to ten times its original volume. The change in entropy is

A

`0.1 R`

B

`2.303 R`

C

`10.0 R`

D

`100.0 R`

Text Solution

Verified by Experts

The correct Answer is:
B
`q_(rev)=-W_(rev)=2.303nRTlog"(V_(2))/(V_(1))`
`DeltaS=(q_(rev))/(T)=2.303 nR log"(V_(2))/(V_(1))`
Here `n=1`, `(V_(2))/(V_(1))=10`
`:. DeltaS=2.303xx1xxRxxlog10`
`=2.303xxRxx1=2.303R`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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