Refer to figure. Let DeltaU(1) and Delta...

Refer to figure. Let `DeltaU_(1)` and `DeltaU_(2)` be the changes in internal energy in the system in process `A+B` and `DeltaW` be the net work done by the system in the process `A+B`,

`DeltaU_(1)+DeltaU_(2)=0`.

`DeltaU_(1)-DeltaU_(2)=0`

`DeltaQ-DeltaW=0`.

`DeltaQ+DeltaW=0`.

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The correct Answer is:

A, C

`DeltaU_(1)+DeltaU_(2)=0., `DeltaQ-DeltaW=0`.

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