上浒充通大粤 19 SHANGHAI JIAO TONG UNIVERSITY 8.4 Equilibrium Conditions Equilibrium conditions: The chemical potential(partial molar Gibbs free energy)of a component must be the same throughout the system. Intensive properties 4=4=4=4=.=4 For each coponent we have P-1 relationships. the chemical potential of component phase p The total number of relationship REL =C(P-1) If there is only one phase,there will be no relationships,REL =0 108.4 Equilibrium Conditions If there is only one phase, there will be no relationships, REL = 0 For each coponent we have P-1 relationships. 10