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Evaluation of Thermodynamical Acoustic Parameters of Binary mixture of DBP with Toluene at 308K and at Different Frequencies

Author Affiliations

  • 1Dept. of physics, Ravenshaw University, Cuttack-753003, Odisha, INDIA

Res.J.chem.sci., Volume 3, Issue (5), Pages 71-82, May,18 (2013)

Abstract

Ultrasonic investigation of molecular interactions in a binary mixture of Di-n-butyl phthalate (DBP) with toluene is carried out at different frequencies (1MHz, 3MHz, 5MHz and 7MHz) at temperature 308K. The experimental measured values of density (ρ) and ultrasonic velocity (Ù) of the binary mixture has been used to compute the different acoustic parameters like isentropic compressibility (β) intermolecular free length (Lƒ), acoustic impedance (Z), their excess values,Rao’s constant (Rm), Wada’s constant (W), relative association (R), available volume(Va), molar volume(V) etc. These acoustic parameters and their excess values are used to access and explain the nature and strength of molecular interaction of DBP with toluene.

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