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Oxygen gas weighing 64 g is expanded fro...

Oxygen gas weighing 64 g is expanded from 1 atm to 0.25 atm at `30^(@)C.` Calculate entropy change, assuming the gas to be ideal.

A

`23.1 JK ^(-1)`

B

`25. 0 JK ^(-1)`

C

`26.1 JK ^(-1)`

D

`22.4 JK ^(-1)`

Text Solution

Verified by Experts

`Delta S = 2. 30 n R log ((p_(1))/( p _(2))) = 2. 303 xx 2 xx 8. 314 log ((1)/( 0. 25)) = 23 . 0 53 JK ^(-1)`
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