Gibbs-Duhem Relation(2) S.J.T.U. Phase Transformation and Applications Page 11/45 Gibbs-Duhem equation Raoult's law ←region for→ A:YA=1 Suppose the B behaves ideally. xB Henry's law region for B: YB=YB° Figure 7.11 Henry's law and Raoult's law regions for the nonideal solution. A behaves ideally. SJTU Thermodynamics of Materials Spring2010©X.J.Jin Lecture 13 Phase RulePhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2010 © X. J. Jin Lecture 13 Phase Rule Page 11/45 Gibbs-Duhem Relation (2) Gibbs-Duhem equation Suppose the B behaves ideally. A behaves ideally