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Isothermal (vapour + liquid) equilibria and excess Gibbs free energies in some binary (cyclopentanone + chloroalkane) mixtures at temperatures from 298.15 K to 318.15 K

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Dragoescu D., Teodorescu M., Barhala A.

Editorial: The Journal of Chemical Thermodynamics, 39, p.1452-1457, 2007.


The vapour pressures of binary (cyclopentanone + 1-chlorobutane, +1,3-dichloropropane, and +1,4- dichlorobutane) mixtures, were measured at the temperatures of (298.15, 308.15, and 318.15) K. The vapour pressures vs. liquid phase composition data have been used to calculate the excess molar Gibbs free energies GE of the investigated systems, using Barker’s method. Redlich–Kister, Wilson and NRTL equations, taking into account the vapor phase imperfection in terms of the second virial coefficient, have represented the GE values. No significant difference between GE values obtained with these equations has been observed.

Cuvinte cheie: Vapour pressure; (Vapour + liquid) equilibria; Excess Gibbs free energy; Mixtures; Cyclopentanone; Chloroalkanes