。△mixGre=-G混合后一G混合前 =∑n4一Σn;4 ● =∑n;(4:*+RTIna)-∑n;4;* =RT∑nlna: =RT(∑n,lnxt∑n:lnY) ·GP=Amix Gre-△mixGid =RT(∑nlnx+∑nly)-RT∑nlnx; GE=RT∑nlny: (3)• mixGre=G混合后－G混合前 • = ∑nii－∑ni i * • = ∑ni (i *+RTlnai )－∑ni i * =RT∑ni lnai =RT(∑ni lnxi+∑ni lni ) • GE=mixGre－mixGid = RT(∑ni lnxi+∑ni lni )-RT∑ni lnxi • GE=RT∑ni lni (3)