In thermodynamic process, pressure of a ...

In thermodynamic process, pressure of a fixed mass of a gas is changes in such a manner that the gas molecules gives out `20` `J` of heat and `10` `J` of work is done in the gas. If the initial internal energy of the gas was `40` `J`, then the final internal energy will be

`30` `J`

`20` `J`

`60` `J`

`40` `J`

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