Journal of Pure and Applied Ultrasonics

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Excess Thermodynamic Properties in Binary Liquids


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

Ultrasonic velocity and viscosity have been determined in three binary liquid mixtures (i.e.) O- chloroaniline+O-chlorophenol, N, N-Diethyl aniline+O-chlorophenol, N, N-Diethyl aniline+O-cresol at 34°C, 37°C, 40°C and 43°C in the entire composition range. Excess adiabatic compressibilities and excess volumes have been evaluated and found to be negative in the mixtures. Excess compressibilities (experimental) have been compared with the theoretical excess compressibilities as suggested by Barker. The agreement is found to be good. The results are interpreted in the light of molecular association to the hydrogen bonding.
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  • Excess Thermodynamic Properties in Binary Liquids

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Authors

U. Sridevi
Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam, India
K. Samatha
Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam, India
A. Viswanatha Sarma
Ultrasonic Research Laboratories, Department of Physics, Andhra University, Visakhapatnam, India

Abstract


Ultrasonic velocity and viscosity have been determined in three binary liquid mixtures (i.e.) O- chloroaniline+O-chlorophenol, N, N-Diethyl aniline+O-chlorophenol, N, N-Diethyl aniline+O-cresol at 34°C, 37°C, 40°C and 43°C in the entire composition range. Excess adiabatic compressibilities and excess volumes have been evaluated and found to be negative in the mixtures. Excess compressibilities (experimental) have been compared with the theoretical excess compressibilities as suggested by Barker. The agreement is found to be good. The results are interpreted in the light of molecular association to the hydrogen bonding.