Pick out the correct statement?

Thermodynamics for Chemical 15/05/2020

A. If an insoluble gas is passed through a volatile liquid placed in a perfectly insulated container,
the temperature of the liquid will increase
B. A process is irreversible as long as Δ S for the system is greater than zero
C. The mechanical work done by a system is always equal to∫P.dV
D. The heat of formation of a compound is defined as the heat of reaction leading to the
formation of the compound from its reactants

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