Journal of Pure and Applied Ultrasonics

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Temperature Dependent Studies of Thermodynamic Properties of Three Binary Systems Using Experimentally Determined Values of Density and Ultrasonic Velocity


Affiliations
1 Department of Chemistry, University of Allahabad, Allahabad, India
 

Density (ρ) and ultrasonic velocity (u) for the three binary systems viz. acetonitrile+nitromethane (System I), 1, 2- dichloroethane+toluene (System II) and 1, 2-dichloroethane+p-xylene (System III) have been measured at three different temperatures 298.15 K, 303.15 K and 308.15 K. The experimental data have been used to obtain a number of important and useful thermodynamic parameters such as isentropic compressibility (βs), intermolecular free length (Lf), acoustic impedance (Z), excess molar volume (VE), deviation in ultrasonic velocity (Δu), excess isentropic compressibility ((βsE), excess acoustic impedance (ZE) and excess intermolecular free length (LfE). The results are discussed in terms of dipole-dipole interactions and hydrogen bonding.

Keywords

Ultrasonic Velocity, Isentropic Compressibility, Excess Acoustic Impedance, Dipole-Dipole Interactions, Hydrogen Bonding.
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  • Temperature Dependent Studies of Thermodynamic Properties of Three Binary Systems Using Experimentally Determined Values of Density and Ultrasonic Velocity

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Authors

J. D. Pandey
Department of Chemistry, University of Allahabad, Allahabad, India
K. K. Tiwari
Department of Chemistry, University of Allahabad, Allahabad, India
Rupali Sethi
Department of Chemistry, University of Allahabad, Allahabad, India
Vinay Sanguri
Department of Chemistry, University of Allahabad, Allahabad, India

Abstract


Density (ρ) and ultrasonic velocity (u) for the three binary systems viz. acetonitrile+nitromethane (System I), 1, 2- dichloroethane+toluene (System II) and 1, 2-dichloroethane+p-xylene (System III) have been measured at three different temperatures 298.15 K, 303.15 K and 308.15 K. The experimental data have been used to obtain a number of important and useful thermodynamic parameters such as isentropic compressibility (βs), intermolecular free length (Lf), acoustic impedance (Z), excess molar volume (VE), deviation in ultrasonic velocity (Δu), excess isentropic compressibility ((βsE), excess acoustic impedance (ZE) and excess intermolecular free length (LfE). The results are discussed in terms of dipole-dipole interactions and hydrogen bonding.

Keywords


Ultrasonic Velocity, Isentropic Compressibility, Excess Acoustic Impedance, Dipole-Dipole Interactions, Hydrogen Bonding.