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化学学报
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化学学报 ›› 1991, Vol. 49 ›› Issue (8): 735-741. 上一篇    下一篇

研究论文

葡萄糖和水混合溶液中多组份电解质溶液热力学I: HCl-NaCl-D-glucose-H2O体系(5-45℃)

吕殿祯;王琴萍;石磊   

  1. 辽宁大学化学系
  • 发布日期:1991-08-15

Thermodynamics of mixed electrolyte in mixed solutios of D-glucose and water. I:system of HCl-NaCl-D-Glucose-H2O from 5 to 45

LU DIANZHEN;WANG QINPING;SHI LEI   

  • Published:1991-08-15

PDF

690

被引次数

7

本文在恒定葡萄糖质量百分数x=10%的条件下,应用电动势法测定无液体接界电池(A)和电池(B)的电动势: Pt,H2(1.013X10^5 Pa)|HCl(m),D-Glucose(x),H2O(1-x)|AgCl-Ag Pt,H2(1.013X10^5 Pa)|HCl(ｍA),NaCl(ｍA),D-Glucose(x),H2O(1-x)|AgCl-Ag (B) 根据电池(A)电动势确定混合液中的Ag-AgCl电极的标准电极电势,讨论了HCl的迁移性质;利用电池(B)的电动势确定了HCl在该体系中的活度系数γA,结果表明,在恒定总离子强度下,HCl的活度系数服从Harned 规则。在溶液组成恒定时,lgγA是温度倒数1/Τ的线性函数,进一步讨论了混合物中HCl的相对偏摩尔焓,计算了HCl的介质效应。

关键词: 水, 热力学性质, 盐酸, 葡萄糖, 电动势, 氯化钠, 焓, 混合液, 电解液

The transfer properties of HCl were calculated and the activity coefficients of HCl in the system were determine The activity of HCl obeyes Harned up to I = 2.0 mol/kg over a range 5-45? Under the condition of constant components of mixture, the logarithm of HCl activity coefficients are a linear function with reciprocal of temps. The primary, secondary and total medium effect of HCl were calculated and discussed.

Key words: WATER, THERMODYNAMIC PROPERTIES, HYDROCHLORIC ACID, GLUCOSE, ELECTROMOTIVE FORCES, SODIUM CHLORIDE, ENTHALPY, MIXED SOLTION, ELECTROLYTES

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