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A thermo-dynamical system is changed fro...

A thermo-dynamical system is changed from state ) ,`(P_(1),V_(1))` to `(P_(2),V_(2))` by two different process. The quantity which will remain same will be

A

`DeltaQ`

B

`DeltaW`

C

`DeltaQ`and `DeltaW`

D

`DeltaQ-DeltaW`

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The correct Answer is:
D
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