上游充通大￥ SHANGHAI JIAO TONG UNIVERSITY Review: Gibbs free energy of liquid and solid solution Common tangent line for Gibbs free energy curves of two phases Cooling Curves Lever rule G 5 G (a) (b)Review: • Gibbs free energy of liquid and solid solution • Common tangent line for Gibbs free energy curves of two phases • Cooling Curves • Lever rule