Raoult's law and Henry's law S.J.T.0. Phase Transformation and Applications Page 4/45 Raoult's law 1887年， 经验定律，PA=Px4→a4=xA “溶液中溶剂的蒸气压P等于同一温度下纯溶剂的蒸气压 P*与溶液中溶剂的摩尔分数x的乘积” Henry's law 1803年，经验定律 XB =ks.BPB P8=kx.8XB YB =1 Kx.8?P8 “在一定温度下微溶气体在溶液中的平衡组成与该气体的 平衡气相分压成正比” SJTU Thermodynamics of Materials Fall 2010 X.J.Jin Lecture 13 Phase RulePhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Fall 2010 © X. J. Jin Lecture 13 Phase Rule Page 4/45 Raoult’s law and Henry’s law Raoult’s law 1887年，经验定律， A A A A A P = P x ⇒ a = x * Henry’s law 1803年，经验定律 , B 1 , xB = kx,B PB ⇒ PB = kx B xB → γ = * , ? x B PB k “溶液中溶剂的蒸气压PA等于同一温度下纯溶剂的蒸气压 P*A与溶液中溶剂的摩尔分数xA的乘积” “在一定温度下微溶气体在溶液中的平衡组成与该气体的 平衡气相分压成正比