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Thermophysical and thermoacoustical properties of benzaldehyde mixtures with ethylbenzene at 303.15, 308.15, and 313.15 K and a pressure of 0.1 MPa

  • Physical Chemistry of Solutions
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Abstract

Ultrasound velocity (u), density (ρ) and viscosity (η) measurements of benzaldehyde + ethylbenzene mixtures have been carried out at 303.15, 308.15, and 313.15 K. These values have been used to calculate the excess molar volume (V E), deviation in viscosity (δη), and deviation in isentropic compressibility (δβs), deviations in ultrasound velocity (δu), excess free volume (δV f), excess intermolecular free length (δL f) and excess Gibbs free energy of activation of viscous flow (δG E). McAllister’s three body interaction model is used for correlating kinematic viscosity of binary mixtures. The excess values were correlated using the Redlich-Kister polynomial equation to obtain their coefficients and standard deviations. The thermophysical properties under the study were fit to the Jouyban-Acree model. The observed variation of these parameters helps in understanding the nature of interactions in these mixtures. Further, theoretical values of the ultrasound speed were evaluated using theories and empirical relations.

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Authors and Affiliations

  1. Department of Chemical Engineering, Sathyabama University, Chennai, 600119, India

    K. Saravanakumar

  2. Department of Chemical Engineering, Sri Venkateswara College of Engineering, Sriperumpudur, Chennai, India

    T. G. Lavanya

  3. Department of Chemical Engineering, St. Joseph’s College of Engineering, Chennai-119, India

    R. Baskaran

  4. Department of Chemical Engineering, A.C. College of Technology, Anna University, Chennai, 600025, India

    T. R. Kubendran

Authors
  1. K. Saravanakumar
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  2. T. G. Lavanya
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  3. R. Baskaran
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  4. T. R. Kubendran
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Correspondence to K. Saravanakumar.

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Saravanakumar, K., Lavanya, T.G., Baskaran, R. et al. Thermophysical and thermoacoustical properties of benzaldehyde mixtures with ethylbenzene at 303.15, 308.15, and 313.15 K and a pressure of 0.1 MPa. Russ. J. Phys. Chem. 86, 568–576 (2012). https://doi.org/10.1134/S0036024412040218

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  • DOI: https://doi.org/10.1134/S0036024412040218

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