四氯化碳+环己酮相合熔点化合物及其固液平衡的热力学计算  

Thermodynamics Calculations of Tetrachloromethane+Cyclohexanone Solid-Liquid Equilibrium and its Congruently Addition Compound

作　　者：罗三来[1] 谭载友[1] 

机构地区：[1]广东药学院药科学院,广东广州510006

出　　处：《信阳师范学院学报（自然科学版）》2006年第3期280-283,321,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：广东省科技重点攻关项目(粤科00-1-014)

摘　　要：对四氯化碳+环己酮固液平衡体系,在223 K到233 K区间,使用四参量GE方程和G ibbs-Duhem方程,计算了8个温度的两组元活度系数和GE方程,在相合熔点233.85 K,x2=0.5,GE=1 405.25 J.mol-1,SE=-64.48 J.mol-1K-1,HE=16 483.98 J.mol-1.该体系相合熔点化合物的离解平衡ΔrGmθ=R(1.65164T-0.007 87T2)J.mol-1,ΔrHmθ=3 415.34 J.mol-1,ΔrSmθ=13.675±0.003 J.mol-1K-1.By using four parameter G^E equation and Gibbs-Duheme quation, the activity coefficient and G^E equation were calculated at eight temperature for tetrachloromethane ＋ cyclohexanone system, at the congruent melting point 233.85K,x2=0.5,G^E=1405.25J·mol^-1,S^E=-64.48J·mol^-1K^-1,H^E=16483.98J·mol^-1. For the congruently addition compound dissociation equilibrium ΔrGm^θ=R（1.65164T-0.0078T^2）J·mol^-1,ΔrHm^θ=3415.34J·mol^-1,ΔSm^θ=13.675±0.003J·mol^-1K^-1.

关 键 词：固液平衡 活度系数 超额吉布斯自由能 相合熔点化合物 

分 类 号：O642.42[理学—物理化学]