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Vijayalakshmi, K.
- Excess Thermodynamic Study of Molecular Interaction in Polar-Non-Polar Liquid Mixtures
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Authors
Affiliations
1 Department of Physics, Cauvery College for Women, Tiruchirappalli, Tamil Nadu, IN
2 Department of Physics, Seethalakshmi Ramaswamy College, Tiruchirappalli, Tamil Nadu, IN
3 Deparrment of Physics, Urumu Dhanalakshmi College, Tiruchirappalli, Tamil Nadu, IN
1 Department of Physics, Cauvery College for Women, Tiruchirappalli, Tamil Nadu, IN
2 Department of Physics, Seethalakshmi Ramaswamy College, Tiruchirappalli, Tamil Nadu, IN
3 Deparrment of Physics, Urumu Dhanalakshmi College, Tiruchirappalli, Tamil Nadu, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 28, No 2-4 (2006), Pagination: 150-153Abstract
Ultrasonic velocities and derived thermodynamic parameters are of considerable interest in understanding the nature and strength of various intermodular interactions, formation of Hydrogen bonding etc In the present work adiabatic compressibility and enthalpies of binary liquid mixtures of n-alcohols with Lactic acid and Dioxane have been computed from the measured values of density, viscosity and ultrasonic velocity. The excess values of these parameters have been calculated to study the nature and strength of molecular interactions in liquid mixtures. The effect of electro negativity and induction reflected in the values of Alcohol-Dioxane systems have been detected.Full Text
- Acoustic and Excess Parameter Studies on Interaction in Ternary Liquid Mixtures
Abstract Views :281 |
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Authors
Affiliations
1 Department of Physics, Cauvery College for Women, Tiruchirappalli, Tamil Nadu, IN
2 Department of Physics, Seethalakshmi Ramaswamy College, Tiruchirappalli, Tamil Nadu, IN
3 Department of Physics, Urumu Dhanalakshmi College, Tiruchirappalli, Tamil Nadu, IN
1 Department of Physics, Cauvery College for Women, Tiruchirappalli, Tamil Nadu, IN
2 Department of Physics, Seethalakshmi Ramaswamy College, Tiruchirappalli, Tamil Nadu, IN
3 Department of Physics, Urumu Dhanalakshmi College, Tiruchirappalli, Tamil Nadu, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 28, No 2-4 (2006), Pagination: 154-156Abstract
In the present work, measurement of ultrasonic velocity, density and viscosity of ternary liquid mixtures of Dioxane, n-alcohols and Lactic acid are made 10 ml specific gravity bottle and Kenon-Fenske viscometer respectively. From the measured values adiabatic compressibility and excess adiabatic compressibility values are computed to study the strengths of various intermolecular intermolecular interactions between the polar liquids and non polar solvent. Lactic acid-Dioxane system shows strong Hydrogen bonding effect. Mutual depolymerisation is predominant in ternary liquid mixtures.Full Text
- Correlation Between Activity Coefficient and Equivalent Conductance of Aqueous Solutions of Electrolytes Through Ultrasonic Measurements
Abstract Views :173 |
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Authors
Affiliations
1 Urumudhanalakshmi College, Tiruchirappalli, IN
2 Seethalakshmi Ramaswamy College, Tiruchirappalli, IN
3 Cauvery College for Women, Tiruchirappalli, Tamilnadu, IN
1 Urumudhanalakshmi College, Tiruchirappalli, IN
2 Seethalakshmi Ramaswamy College, Tiruchirappalli, IN
3 Cauvery College for Women, Tiruchirappalli, Tamilnadu, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 28, No 2-4 (2006), Pagination: 166-168Abstract
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.Full Text