CHEMICAL POTENTIAL

The chemical potential is a partial molar Gibbs free energy , defined as µ i = ( G/ n i ) T,P,n j. It is a measure of chemical stability that can be used to predict and interpret phase changes and chemical reactions. For example, consider mixing ice and water. If the ice melts, the chemical potential of the water was lower than that of the ice. If the water freezes, the chemical potential of the water was lower.