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5 mol of gas at 5 atmospheric pressure c...

5 mol of gas at 5 atmospheric pressure contained in a 100 L cylinder absorbed 30.26 Kj of heat when it expanded to 200 L at 2 atmospheric pressure. The change in the internal energy of gas is

A

`+20.26J`

B

`+20.26Kj`

C

`-20.26KJ`

D

`10Kj`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaU=q+W`
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