Indian Journal of Pure and Applied Physics

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Physico-chemical analysis on binary liquid mixture of Nicotinic acid at different temperatures


Affiliations
1 Department of Physics, Dada Ramchand Bakhru Sindhu Mahavidyalaya, Nagpur – 440 017, India
2 Acoustic Research Laboratory, Department of Physics, RTM Nagpur University, Nagpur - 440 033, India

The ultrasonic velocity (u), density () and viscosity () of Nicotinic acid in methanol solutions have been investigated at 288, 298 and 308 K. From these experimental measurement, thermo acoustical parameters such as acoustical impedance (Z), adiabatic compressibility (βa), intermolecular free length (Lf), relaxation time (), internal pressure (πin) and free volume (Vf) have been computed. The variation of these acoustical parameters with molar concentration and temperature indicates the existence of strong molecular interaction in the systems studied. The acoustical analysis revealed the possibility of intermolecular hydrogen bonding in the binary liquid solution of Nicotinic acid and Methanol.
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  • Physico-chemical analysis on binary liquid mixture of Nicotinic acid at different temperatures

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Authors

Sudhir P Dange
Department of Physics, Dada Ramchand Bakhru Sindhu Mahavidyalaya, Nagpur – 440 017, India
Omprakash P Chimankar
Department of Physics, Dada Ramchand Bakhru Sindhu Mahavidyalaya, Nagpur – 440 017, India
Pradip D Borkar
Acoustic Research Laboratory, Department of Physics, RTM Nagpur University, Nagpur - 440 033, India

Abstract


The ultrasonic velocity (u), density () and viscosity () of Nicotinic acid in methanol solutions have been investigated at 288, 298 and 308 K. From these experimental measurement, thermo acoustical parameters such as acoustical impedance (Z), adiabatic compressibility (βa), intermolecular free length (Lf), relaxation time (), internal pressure (πin) and free volume (Vf) have been computed. The variation of these acoustical parameters with molar concentration and temperature indicates the existence of strong molecular interaction in the systems studied. The acoustical analysis revealed the possibility of intermolecular hydrogen bonding in the binary liquid solution of Nicotinic acid and Methanol.