Spontaneous change is one in which there is:

A A lowering of entropy
B A lowering of free energy
C Increase in free energy
D An increase in Internal energy

Correct Answer: A lowering of free energy

Entropy and enthalpy together make a new quantity, the Free Energy which, under conditions of constant temperature and pressure, determines the direction of spontaneous change. All spontaneous processes have a negative change in free energy.

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