Which of the following correctly explains entropy?

A. the natural tendency for a system to achieve a greater disorder
B. a balance of two driving forces between free energy and enthalpy changes
C. the cause of spontaneity of a reaction
D. a measure of the enthalpy of a reaction
E. a measure of the rate of attaining equilibrium in a reversible reaction

Correct Answer:

Option A – the natural tendency for a system to achieve a greater disorder