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For a sample of n mole of a perfect gas ...

For a sample of n mole of a perfect gas at constant temperature T (K) when its volume is changed from `V_1` to `V_2` the entropy change is given by

A

`[delta S= nRTIn(V_2/V_1)]`

B

`[delta S= nRTIn(V_1/V_2)]`

C

`[delta S= nR(V_2/V_1)]`

D

`[delta S= nRIn(V_2/V_1)]`

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