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  • Chem Sci Trans., 2019, 8(1),  pp 91-100  

    DOI:10.7598/cst2019.1603

    Research Article

    Prediction and Correlations of Thermodynamic Properties of Binary Mixtures N-Ethyl-2-pyrrolidone (EP) + Ethanolamine (MEA), Diethanolamine (DEA) and Triethanolamine (TEA) as a Function of Temperature

  • J D PANDEY1, RUPALI SETHI1*, VANDNA PATHAK2, S K VISHWAKARMA2 and ASHISH K SHARMA3
  • 1Deparment of Chemistry, University of Allahabad, Allahabad-211002, India
    2Department of Chemistry, Mahatma Gandhi Chitrakoot Gramodya Vishvavidyalaya Chitrakoot, Satna, India
    3Department of Chemistry, Government Degree College, Raipur, Dehradun, India
  • Abstract

    Density and ultrasonic speed data have been used to calculate a number of useful and important thermoacoustic and thermodynamic properties such as coefficients of thermal expansion (α), isothermal compressibility (βT), heat capacity ratio (ϒ), internal pressure (Pint), surface tension (σ), pseudo-gr?neisen parameter (Γ), molar sound velocity (R), molar compressibility (W) at 293.15, 303.15, 313.15 and 323.15 K. The empirical relations were successfully applied to binary mixtures N-ethyl-2-pyrrolidone (EP) + ethanolamine (MEA), N-ethyl-2-pyrrolidone (EP) +diethanolamine (DEA), N-ethyl-2-pyrrolidone (EP) + triethanolamine (TEA) which is helpful in the study of structure determination and interactions between the binary liquid mixtures. Furthermore, the effect of concentration shows clearly that experimental surface tension data are in good agreement with the predicted one.

    Keywords

    Thermodynamic properties, Ultrasonic speed, Internal pressure, Surface tension, EP, MEA, DEA, TEA

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