Journal of Pure and Applied Ultrasonics

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Evaluation of Excess Thermodynamic Properties in Some Binary Mixtures


Affiliations
1 Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam-530003, India
 

Ultrasonic velocity density, viscosity, in binary mixtures of m-cresol+quinoline, at 18°C, 24°C and 32°C, m-cresol+phenylhydrazine and o-chlorophenol+phenylhydrazine at 32°C, 38°C and 45°C are measured over the entire range of composition. From the experimental data other related thermodynamic parameters, viz., adiabatic compressibility, intermolecular free length, excess volume, excess adiabatic compressibility, excess viscosity, Rao's constant and Wada's constant are calculated. The deviation from ideality of these parameters is explained on the basis of molecular interaction between the constituent of the mixtures.
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  • Evaluation of Excess Thermodynamic Properties in Some Binary Mixtures

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Authors

J. Viswanadha Sastry
Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam-530003, India
K. Samatha
Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam-530003, India
A. Viswanatha Sharma
Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam-530003, India

Abstract


Ultrasonic velocity density, viscosity, in binary mixtures of m-cresol+quinoline, at 18°C, 24°C and 32°C, m-cresol+phenylhydrazine and o-chlorophenol+phenylhydrazine at 32°C, 38°C and 45°C are measured over the entire range of composition. From the experimental data other related thermodynamic parameters, viz., adiabatic compressibility, intermolecular free length, excess volume, excess adiabatic compressibility, excess viscosity, Rao's constant and Wada's constant are calculated. The deviation from ideality of these parameters is explained on the basis of molecular interaction between the constituent of the mixtures.