chemical potential

noun

, Thermodynamics.

1. a quantity that determines the transport of matter from one phase to another: a component will flow from one phase to another when the chemical potential of the component is greater in the first phase than in the second.

chemical potential

noun

1. a thermodynamic function of a substance in a system that is the partial differential of the Gibbs function of the system with respect to the number of moles of the substance μ