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Citation: WANG Qin-Ping, ZHANG Chun-Li, CHEN Hong-Tao, ZHOU Li-Hua, LÜ Dian-Zhen. On the Thermodynamic Property of HCl-CoSO₄ Solution[J]. Chinese Journal of Applied Chemistry, ;2003, 20(11): 1071-1075. shu

On the Thermodynamic Property of HCl-CoSO₄ Solution

1.
a Department of Chemistry, Liaoning University, Shenyang 110036;
2.
b Shenyang Polytechnic University, Shenyang

Corresponding author: LÜ Dian-Zhen,
Received Date: 12 March 2003
Available Online: 12 May 2003
Fund Project: 辽宁省自然科学基金资助(9810300902) (9810300902)

The thermodynamic property of HCl-CoSO₄ system has been studied by the emf measurement in the following cell(A) without liquid junction: Pt,H₂(10⁵Pa)|HCl(c_A),CoSO₄(c_B),H₂O|AgCl-Ag (A) at constant total ionic strength I=0.2、0.4、0.6、0.8、1.0、1.5 mol/kg and y_B=0.00、0.10、0.20、0.30、0.50、0.70 at temperatures from 278.15 to 323.15 K.The activity coefficients of HCl, lg γ_A, for HCl-CoSO₄ system have been determined from cell(A). The results show that the activity coefficients of HCl in the solutions still obey Harned's rule and lg γ_A is in linear function with the reciprocal of the absolute temperature at constant composition of the mixture.
- cobalt sulfate,
- hydrochloric acid,
- thermody namic property,
- activity coefficient
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On the Thermodynamic Property of HCl-CoSO₄ Solution