When applied to a solution, this equation yields a relationship between the natural logarithms of the activities of the solvent and solute.
One analogue of this equation can be derived by adding a term for surface tension to the additivity rule for bulk phases and then differentiating. When applied to a solution, this equation yields a relationship between the natural logarithms of the activities of the solvent and solute. The general form of this equation sets the central sum over all components of a system equal to negative differential temperature times entropy plus differential pressure times volume. For systems of constant temperature and pressure, it relates changes in chemical potential with changes in composition. For 10 points, name this doubly-eponymous equation which is used to derive one of its namesake's phase rule.
One analogue of this equation can be derived by adding a term for surface tension to the additivity rule for bulk phases and then differentiating.
{Gibbs}-{Duhem} Equation