上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY L(n-I）+RTI T 4G m a1.pure pure water ice G G Lower temperature ice pure water solution solution NAIJIAO TONG △G L(T-T) elting △G=RTln a1,solution a1.pure At T',If pure solid is in equilibrium with solution: AG=L(T-)+RTIn bon=0 A1.pure 8T’ G ice ice pure water solution l pure l solution a a G RT . ,   ln m m melting ( - ) T L T T G  G l pure l solution a a RT T L T T G . , m m ln ( - )    ln 0 ( - ) . , m m     l pure l solution a a RT T L T T G At T’ , If pure solid is in equilibrium with solution: Tm pure water solution T’ Lower temperature 8