上浒充通大率 SHANGHAI JIAO TONG UNIVERSITY 8.1 Phases 何谓相：物理、化学性质相同的均匀部分 相与相之间有明确界面，越过界面，性质突变 气相，无论多少，1相 •液相，纯、溶液（均匀），1相 多种液体混合，溶解度，1,2,3，… ·固相，纯或原子/分子状态相互混合成固溶体，1相 一般体系中，多一种固体便多一个相 Gas:1 phase Liquid:pure liquid or solution=1 phase Mixture of different liquids:more than 1 phases Solid:pure or atomically/molecularly distributed system,1 phase in general,one more solid=1 more phase 68.1 Phases Gas: 1 phase Liquid: pure liquid or solution= 1 phase Mixture of different liquids: more than 1 phases Solid: pure or atomically/molecularly distributed system, 1 phase in general, one more solid= 1 more phase 6