3)△ UB =U B.m 4) △ixS=-R∑nBLnxB>0 B 5)△iG=RT∑ngLnxg〈0 △ixCF∑neGg-∑nGnm& -∑n4-∑n,层18 3）ΔmixU=0 ΔmixG= −  B B m B B nB GB n G , = n n (T) B B  B B −  B B    UB = UB,m 4）ΔmixS= - R B nB LnxB > 0 5）ΔmixG=RT B nB LnxB < 0