高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (12): 1663.

• 研究论文 • 上一篇    下一篇

水-醋酸体系中HCl的热力学性质研究

宋文煜, 王风云   

  1. 华东工学院化工学院, 南京, 210014
  • 收稿日期:1990-09-21 出版日期:1991-12-24 发布日期:1991-12-24
  • 通讯作者: 宋文煜

Thermodynamic Studies of Hydrochloric Acid in HAc-H2O Systems

Song Wen-yu, Wang Feng-yun   

  1. Department of Chemistry, East China Institute of Technology, Nanjing, 210014
  • Received:1990-09-21 Online:1991-12-24 Published:1991-12-24

摘要: 人们对混合溶剂中的电解质热力学性质虽然已进行了较广泛的实验研究,并提供了许多实验数据,为理论研究提供了方便,但还很不全面,即使象水-醋酸这样的混合溶剂体系,至今尚未见较全面的报道,为此,本文设计了如下电池:玻璃电极(H+)|HCl(m),HAc+H2O|AgCl-Ag并测定该电池的电动势,以了解HCl在水-醋酸中的热力学行为及离子-溶剂相互作用特点。

关键词: 水-醋酸体系, 电动势, 活度系数, 迁移自由能

Abstract: By using a glass electrode and a numerical ionometer, an EMF measurement for the cellglass (H+)|HCl(m), HAc+H2O|AgCl-Agwas performed in a series of HAc-H2O mixed solvents with the concentration of HCl as 0. 020, 0. 040, 0. 060, 0. 080 and 0. 100 mol/kg-solvent. The average activity coefficients for HC1in the mixed solvents and the standard transfer free energy for the electrolyte from water to the mixed solvents are evaluated, and a discussion about the results is given briefly.

Key words: Water-acetic acid system, Electromotive force, Activity coefficient, Transfer free energy

TrendMD: