9.1 Freezing Point Depress4ion(4) S.J.T.0. Phase Transformation and Applications Page 4/34 稀溶液的依数性 Liquid Liquid T→x Tm (melting temperature) L+S T T Solid A XB.1 XB→ B XB L(T-T) RT △T=Tm-T ln(1-z)=-z small z SJTU Thermodynamics of Materials Fall 2011 X.J.Jin Lecture 15 Phase Diagram llPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Fall 2011 © X. J. Jin Lecture 15 Phase Diagram II Page 4/34 9.1 Freezing Point Depress4ion (4) 2 ( ) m m B RT L T T x − = z z small z T Tm T − = − Δ = − ln(1 ) 稀溶液的依数性 T ↔ x T Liquid Tm (melting temperature) Solid A B Tm T xB T1 Liquid xB,l L+S