Question: A piston compresses a fluid inside a closed recipient, which is also heated by an external source. The work done by the piston is W

A piston compresses a fluid inside a closed recipient, which is also heated by an external source. The work
done by the piston is W=250J, while the heat delivered by the external source is Q=650J. Calculate the
change in fluid's internal energy U.
A piston compresses a fluid inside a closed

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