1.

We consider a thermodynamic system. If ∆U represents the increase in its internal energy and W, the work done by the system; which of the following statements are true?

A. ∆U=-W in an isothermal process
B. ∆U=W in an isothermal process
C. ∆U=-W in an adiabatic process
D. ∆U=W in an adiabatic process
Answer» D. ∆U=W in an adiabatic process


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