Question 5 S.J.T.U. Phase Transformation and Applications 试给出A-B二元系和A-B-C三元系随机混合溶体的混合熵的极值，并说 明原因，图中的纵轴坐标为△S/R i=n ASm=-R∑x,lnx 1.0 0.8 i=1 0.8 0.6 a尽 0.6 0.4 0.2 02 0 A 0.20.4 0.60.8 B 0 B原子的分数B) A B SJTU Thermodynamics of Materials Spring 2008 ©X.J.Jin Lecture 9 electrochemistry IPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 9 electrochemistry I Question 5 试给出A-B二元系和A-B-C三元系随机混合溶体的混合熵的极值，并说 明原因，图中的纵轴坐标为 ∑ = = −=Δ ni i mix ii xxRS 1 ln Δ / RS