Which of the following thermodynamic properties is the most useful criterion of spontaneity?
A) Entropy
B) Free energy
C) Standard free energy
D) Enthalpy
E) Change in temperature

Question

Quizplus · Accepted Answer

Free energy, specifically Gibbs free energy, is the most useful criterion for spontaneity in processes at constant temperature and pressure. A negative change in Gibbs free energy indicates a spontaneous process.

Which of the Following Thermodynamic Properties Is the Most Useful