2.9 Entropy Changes(2) S.J.T.U. Phase Transformation and Applications 变化过程的 熵很重要， 所以要计算 H=AH △H= Temperature AS= CPu dT 入Kd △Hm △S= P(S) Temperature SJTU Physical Chemistry of Materials Spring 2010 ©X.J.Jin Lecture 5 property relation IPhase Transformation and Applications S. J. T. U. SJTU Physical Chemistry of Materials Spring 2010 © X. J. Jin Lecture 5 property relation I 2.9 Entropy Changes (2)    Tm T P S dT T C S 1 ( )    Tm T P l dT T C S 1 ( ) m m m T H S    Temperature Entropy    Tm T H CP S dT 1 ( )    Tm T H CP l dT 1 ( ) H  Hm Temperature Enthalpy 变化过程的 熵很重要， 所以要计算