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Thermo Acoustical studies on Molecular Interaction in Ternary Liquid mixtures

Author Affiliations

  • 1Department of Physics, Achariya college of Engineering Technology, Puducherry, INDIA
  • 2 Department of Physics, DDE, Annamalai University, Annamalainagar, Tamil Nadu, INDIA

Res.J.chem.sci., Volume 5, Issue (2), Pages 85-88, February,18 (2015)


Ultrasonic velocity (U), viscosity (η) and Density (ρ) were measured for three component liquid system of tetrahydrofuran (THF)+heptane+decane at 303, 308 and 313 K. The excess values of various acoustical parameters such as viscosity (ηE), adiabatic compressibility (βE), free length (LEf), free volume (VEf), internal pressure (πEi) and Gibb’s free energy (ΔGE) have been calculated from the experimental data and discussed in terms of weak molecular interaction present in the mixtures.


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