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 Con

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.

Abstract: 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,x_2=0.5,G~E=1 405.25 J·mol~(-1),S~E=-64.48 J·mol~(1)K~(-1),H~E=16 483.98 J·mol~(-1).For the congruently addition compound dissociation equilibrium Δ_rG_m~θ=R(1.651 64T-0.007 87T~2)J·mol~(-1),Δ_rH_m~θ=3 415.34 J·mol~(-1),Δ_rS_m~θ=13.675±0.003 J·mol~(-1)K~(-1).