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Ultrasonic Study of Acoustical Parameters of Binary Liquid Mixtures of Methyl Benzoate with 1-Octanol at 303.15K, 308.15K, 313.15K and 318.15K

Author Affiliations

  • 1 Department of Physics, V.R. Siddhartha Engineering College,Vijayawada,INDIA

Res.J.chem.sci., Volume 3, Issue (3), Pages 14-19, March,18 (2013)


The ultrasonic velocity (U), the density (Ρ) and viscosity (η) of methyl benzoate with 1-Octanol have been measured at 303.15K, 308.15K, 313.15K and 318.15K over the entire range of composition. From the measured data of ultrasonic velocity, density and viscosity, acoustic parameters such as adiabatic compressibility (β), free length (Lf), free volume (Vf), internal pressure (πi), relaxation time (ζ) and acoustic impedance (Z) have been estimated using standard relations. The variation of adiabatic compressibility (β), free length (Lf), free volume (Vf) internal pressure (πi), relaxation time (ζ) and acoustic impedance (Z) with concentration and temperature have been studied. Acoustic parameters provide important information in understanding the solute-solvent interaction in a polymer solution.


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