An isolated system has two phases, denoted by A and B, each of which consists of the same two substances, denoted by 1 and 2. Show that necessary conditions for equilibrium are
1. the temperature of each phase is the same, TA 5 TB.
2. the pressure of each phase is the same, pA 5 pB.
3. the chemical potential of each component has the same value in each phase, mA 5 mB, mA 5 mB.
(a) one component?
(b) two components?
(c) three components?