Pick out the correct statement.

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

Answer: Option D

Solution(By Examveda Team)

The heat of formation is defined as amount of heat absorbed or evolved when I mol of a compound is formed from its elements in their standard states.