Journal of Pure and Applied Ultrasonics

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Correlation Between Activity Coefficient and Equivalent Conductance of Aqueous Solutions of Electrolytes Through Ultrasonic Measurements


Affiliations
1 Urumudhanalakshmi College, Tiruchirappalli, India
2 Seethalakshmi Ramaswamy College, Tiruchirappalli, India
3 Cauvery College for Women, Tiruchirappalli, Tamilnadu, India
 

Ultrasonic velocity, density, and viscosity of aqueous solutions of Cobaltous chloride and Zinc chloride for various concentrations up to saturation are measured at various temperatures ranging from 15°C to 55°C. from these measurements internal pressure, and free volume of aqueous solutions of cobaltous chloride and Zinc chloride are computed. Activity coefficient is computed from internal pressure and the values of arbitrary constants. The correlation between activity coefficient and equivalent conductance is carried out and the results are interpreted. It is found that the linear variation in the case of cobaltous chloride solutions and non linear variation in the case of solutions of Zinc chloride. It is explained on the basis of equivalent conductance.
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  • Correlation Between Activity Coefficient and Equivalent Conductance of Aqueous Solutions of Electrolytes Through Ultrasonic Measurements

Abstract Views: 188  |  PDF Views: 0

Authors

R. Ghandhimathi
Urumudhanalakshmi College, Tiruchirappalli, India
V. Lalitha
Seethalakshmi Ramaswamy College, Tiruchirappalli, India
K. Vijayalakshmi
Cauvery College for Women, Tiruchirappalli, Tamilnadu, India

Abstract


Ultrasonic velocity, density, and viscosity of aqueous solutions of Cobaltous chloride and Zinc chloride for various concentrations up to saturation are measured at various temperatures ranging from 15°C to 55°C. from these measurements internal pressure, and free volume of aqueous solutions of cobaltous chloride and Zinc chloride are computed. Activity coefficient is computed from internal pressure and the values of arbitrary constants. The correlation between activity coefficient and equivalent conductance is carried out and the results are interpreted. It is found that the linear variation in the case of cobaltous chloride solutions and non linear variation in the case of solutions of Zinc chloride. It is explained on the basis of equivalent conductance.