The maximum quantity of energy available for useful work is:
A)constant
B)Gibbs energy change
C)the entropy change
D)the internal energy change
E)the enthalpy change

Question

Quizplus · Accepted Answer

Gibbs energy change (also known as Gibbs free energy change) is the maximum amount of non-expansion work that can be extracted from a closed system; this maximum can be attained only in a completely reversible process. Gibbs energy is a state function, and its change is directly related to the spontaneity of a process at constant pressure and temperature.

The Maximum Quantity of Energy Available for Useful Work Is