A gas is compressed at a constant pressu...

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 is

A

Increased by 400 J

B

Increased by 200 J

C

Increased by 100 J

D

Decreased by 200 J

Text Solution

Verified by Experts

The correct Answer is:

A

From FLOT `DeltaU=DeltaU+DeltaW=DeltaU+PDeltaV`
`rArr 100=DeltaU+ 50 xx (4 -10) rArr DeltaU=400 J`

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