15:48:33 Graphical Representation(5) S.J.T.U. Phase Transformation and Applications Page 11/46 G-GA-G=RTIngA GA° G° GArel GA=μB 个 Ggrel A B GB=μB xB> Figure 7.5 Plot of G versus xs to show geometrical relationships between molar Gibbs free energy and mole fraction of B.(Note free choice of level for Ge and Ge.) SJTU Thermodynamics of Materials Spring2007©X.J.Jin Lecture 12 Solution IlPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2007 © X. J. Jin Lecture 12 Solution II Page 11/46 15:48:33 Graphical Representation (5) A A A rel A =−= RTGGG lnα o