# What does Gibbs free energy depend on?

Oct 9, 2016

An enthalpy term and an entropy term.

#### Explanation:

$\Delta {G}^{\circ} = \Delta {H}^{\circ} - T \Delta {S}^{\circ}$

The Gibbs free energy is the single, unequivocal criterion for the spontaneity of chemical change. Negative values of $\Delta G$ denote a $\text{spontaneous reaction}$.

$\Delta G$ may also be related to the equilibrium constant, ${K}_{\text{eq}}$ by the equation:

$\Delta {G}^{\circ} = - R T \ln {K}_{\text{eq}}$.