The necessary condition for phase equilibrium in a multiphase system of N components is that the
The necessary condition for phase equilibrium in a multiphase system of N components is that the Correct Answer Chemical potentials of a given component should be equal in all phases
For Thermodynamic equilibrium to exist between the phases the phases should have same pressure (so mechanical equilibrium exists) and to satisfy the thermal equilibrium the temperature between the phases should be same similarly, for chemical equilibrium to exist the chemical potential of a constituent between all the phases should be the same.