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A gas is compressed at a constant pressure of `50N//m^(2)` from a volume `10m^(3)` to a volume of `4m^(3)`. 100J of heat is added to the gas then its internal energy isA. Increased by 400 JB. Increased by 200 JC. Increased by 100 JD. Decreased by 200 J |
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Answer» Correct Answer - A From FLOT `DeltaU=DeltaU+DeltaW=DeltaU+PDeltaV` `rArr 100=DeltaU+ 50 xx (4 -10) rArr DeltaU=400 J` |
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