Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Application of Flory-Treszczanowicz-Benson model and Prigogine-Flory-Patterson theory to Excess Molar Volumes of Isomers of Propanol with Cyclohexane or n-Hexane

  • Gahlyan, Suman (Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology) ;
  • Verma, Sweety (Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology) ;
  • Rani, Manju (Department of Chemical Engineering, Deenbandhu Chhotu Ram University of Science and Technology) ;
  • Maken, Sanjeev (Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology)
  • Received : 2018.02.20
  • Accepted : 2018.06.04
  • Published : 2018.08.01
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Abstract

Excess molar volumes ($V_m^E$) of binary mixtures of 1-propanol or 2-propanol (1) + cyclohexane or n-hexane (2) were measured with V-shaped dilatometer at 303.15 K. The $V_m^E$ data for these mixtures varied as: 2-propanol > 1-propanol and were higher for cyclohexane than n-hexane for both propanol systems. The experimental data were correlated with Redlich-Kister polynomial. The $V_m^E$ data were interpreted qualitatively as well as quantitatively in terms of Flory-Treszczanowicz-Benson model and Prigogine-Flory-Patterson theory. Both models correctly described the sign and shape of $V_m^E$ vs $x_1$ curves. The values calculated by both the models agree well with the experimental data.

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References

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