In a thermodynamic process, pressure of ...

In a thermodynamic process, pressure of a fixed mass of a gas is changed in such a manner that the gas release `20 J` of heat and `8 J` of work is done on the gas. If initial internal energy of the gas was `30 J`, what will be the final internal energy?

`2J`

`42 J`

`18J`

`58J`

Text Solution

Verified by Experts

The correct Answer is:

`U_(f)-U_(i)=dQ-dW , dQ=(U_(f)-U_(i))+dW`

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