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Ultrasonic Speed and Isentropic Compressibility of 2-propanol with Hydrocarbons at 298.15 and 308.15 K

  • 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)
  • 투고 : 2017.05.16
  • 심사 : 2017.06.30
  • 발행 : 2017.10.01

초록

Intermolecular interactions were studied for binary mixtures of 2-propanol + cyclohexane, n-hexane, benzene, toluene, o-, m- and p-xylenes by measuring ultrasonic speeds (u) over the entire range of composition at 298.15 K and 308.15 K. From these results the deviation in ultrasonic speed was calculated. These results were fitted to the Redlich-Kister equation to derive the binary coefficients along with standard deviations between the experimental and calculated data. Acoustic parameters such as excess isentropic compressibility ($K_s^E$), intermolecular free length ($L_f$) and available volume ($V_a$) were also derived from ultrasonic speed data and Jacobson's free length theory. The ultrasonic speed data were correlated by Nomoto's relation, Van Dael's mixing relation, impedance dependence relation, and Schaaff's collision factor theory. Van Dael's relation gives the best prediction of u in the binary mixtures containing aliphatic hydrocarbons. The ultrasonic speed data and isentropic compressibility were further analyzed in terms of Jacobson's free length theory.

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참고문헌

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  3. Optical and Acoustic Properties of Binary Mixtures of Butanol Isomers as Oxygenates with Cyclohexane, Benzene and Toluene at 308.15 K vol.56, pp.5, 2017, https://doi.org/10.9713/kcer.2018.56.5.663
  4. Transport Properties and Modeling of Viscosity for Binary Mixtures of Butanol Isomers $$+$$ + Hydrocarbons vol.43, pp.11, 2017, https://doi.org/10.1007/s13369-018-3276-1