应用离子选择性电极进行溶液热力学研究——Ⅴ.KCl在283.15K～318.15K间七个温度下由H_2O至DMF-H_2O混合溶剂的标准转移Gibbs自由能和转移熵的测定

CORC > 北京大学 > 化学与分子工程学院

	应用离子选择性电极进行溶液热力学研究——Ⅴ.KCl在283.15K～318.15K间七个温度下由H_2O至DMF-H_2O混合溶剂的标准转移Gibbs自由能和转移熵的测定; USING ION-SELECTIVE ELECTRODES TO STUDY THE THERMODYNAMICS OF SOLUTION .5. THE STANDARD GIBBS FREE-ENERGIES AND ENTROPIES OF TRANSFER OF KCL FROM H2O TO DMF-H2O MIXTURE AT 7 TEMPERATURES FROM 283.15K TO 318.15K
	褚德萤 ; 韩素娥 ; 刘瑞麟
刊名	化学学报
	1993
关键词	离子选择电极标准迁移自由能标准迁移熵离子溶剂化作用溶剂结构
英文摘要	本文应用Corning一价阳离子选择电极与氯离子选择电极组成无液接可逆电池,测定电池在283.15K～318.15K间七个温度下的标准电动势及其温度系数,计算KCl从纯水到相应的DMF-H_2O混合溶剂的标准转移Gibbs自由能ΔG_t~0和标准转移熵ΔS_t~0,得出ΔG_t~0和ΔS_t~0随混合溶剂中DMF的摩尔分数x_(DMF)及温度T的变化规律.发现KCl的ΔS_t~0随x_(DMF)变化的趋势和NaCl的相反.从离子溶剂化作用及其对溶剂结构的影响作了讨论.; The standard electromotive forces of the reversible cells without liquid junction consists of the Corning Monovalent cation Electrode and chloride selective electrode, namely, Cl- selective electrode \ KCl(m), w or \ M+ glass-electrode have been measured, and the standard Gibbs free energies of transfer of KCl from water to N, N-dimethylformamidewater mixtures have been calculated. The standard transfer entropies have been also calculated from temperatures coefficient of DELTAG(t)degrees at seven temperatures from 283.15 K to 318.15 K. The behaviour of the change of DELTAG(t)degrees and DELTAS(t)degrees; with organic composition and temperature have been given, It is found that the changing tendency of DELTAS(t)degrees(KCl) and DELTAS(t)degrees (NaCl) from H2O to H2O-DMF mixture are different. The corresponding change of solvation of KCl from the pure water to mixed solvents and its influence on the structure of the liquid studied were discussed.; SCI(E); 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 1; 08; 769-773; 51
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/313462]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	褚德萤,韩素娥,刘瑞麟. 应用离子选择性电极进行溶液热力学研究——Ⅴ.KCl在283.15K～318.15K间七个温度下由H_2O至DMF-H_2O混合溶剂的标准转移Gibbs自由能和转移熵的测定, USING ION-SELECTIVE ELECTRODES TO STUDY THE THERMODYNAMICS OF SOLUTION .5. THE STANDARD GIBBS FREE-ENERGIES AND ENTROPIES OF TRANSFER OF KCL FROM H2O TO DMF-H2O MIXTURE AT 7 TEMPERATURES FROM 283.15K TO 318.15K[J]. 化学学报,1993.
APA	褚德萤,韩素娥,&刘瑞麟.(1993).应用离子选择性电极进行溶液热力学研究——Ⅴ.KCl在283.15K～318.15K间七个温度下由H_2O至DMF-H_2O混合溶剂的标准转移Gibbs自由能和转移熵的测定.化学学报.
MLA	褚德萤,et al."应用离子选择性电极进行溶液热力学研究——Ⅴ.KCl在283.15K～318.15K间七个温度下由H_2O至DMF-H_2O混合溶剂的标准转移Gibbs自由能和转移熵的测定".化学学报 (1993).