M. Venkateshwara Rao

Isobaric Vapour-Liquid Equilibrium Data for the Binary Systems of Anisole with Benzene and Chlorobenzene

Isobaric VLE data were obtained for the binary systems of anisole with benzene and chlorobenzene over the entire composition range by an indirect method using a standard Swietoslawski-type ebulliometer at 3 different pressures. The experimental t-x data were correlated with Wilson & NRTL methods. Both these methods represent the data adequately.

Isobaric Vapour-Liquid Equilibria in the Allyl Alcohol + 1,2-Dichloro-Ethane System

Isobaric VLE are measured at 200, 500 and 705 mm Hg at ten compositions spread evenly, over the entire liquid mole fraction range, emplying a Swietoslawski-type ebulliometer. The t-x data collected are found to be well represented by the Wilson model.

Density and Viscosity of Methanol + 1,2-Dichloroethane, Methanol + 1,1,1-Trichloro Ethane, and Methanol + 1,1,2,2-Tetrachloroethane Mixtures

Abstract Density and viscosity measurements on the binary mixtures of methanol + 1,2-dichloroethane, methanol + 1,1,1-trichloroethane, and methanol + 1,1,2,2-tetrachloroethane binary mixtures at 303.15, 313.15 and 323.15 K are reported. The representation of the data by simple mixing rules is also studied.

Activity coefficient and excess gibbs free energy of allyl alcohol with tetrachloroethylene

Abstract Isobaric vapour-liquid equilibrium data are measured at 200, 500 and 705 mm Hg at ten compositions, spread evenly, over the entire mole fraction range. The composition vs. boiling point (x-t) data are found to be well represented by the Wilson model. The optimum Wilson parameters are used to calculate the vapour phase compositions, activity coefficients and the excess Gibbs free energies.

Isobaric Vapour-Liquid Equilibria in the Binary Systems Formed by Anisole with Benzonitrile and Nitrobenzene

Isobaric VLE data were measured for the binary systems of anisole with benzonitrile and nitrobenzene over the entire composition range by an indirect method using a Swietoslawski-type ebulliometer at three pressures. The experimental t-x data were found to be well represented by Wilson and NRTL models.

Excess volume, speed of sound and isentropic compressibilities of 1,2-dichloroethane, 1,1,1-trichloroethane 1,1,2,2-tetrachloroethane with methanol at 303.15 K

Abstract Excess volumes and speed of sound for the binary mixtures of 1,2-dichloroethane; 1,1,1-trichloroethane and 1,1,2,2-tetrachloroethane with methanol have been measured at 303.15 K. Excess volumes for the mixtures of 1, 2 dichloroethane and 1,1,1-trichloroethane with methanol are found to be positive whereas they are negative for 1,1,2,2-tetrachloroethane. The experimental speed of sound for these mixtures are found to be in good agreement with theoretical values. The speed of sound and excess volumes were used to calculate isentropic compressibilities.

Activity Coefficient and Excess Gibbs Free Energies of Propargyl Alcohol with Trichloroethylene

Abstract Isobaric vapour-liquid equilibrium data are measured at 200, 500 and 707 mm Hg at ten compositions spread evenly over the entire liquid mole fraction range, employing a Swietoslawski type ebulliometer. The liquid phase composition vs. bubble temperature (x-t) data are found to be well represented by Wilson model The optimum Wilson parameters are used to calculate the vapour phase compositions, activity coefficients and the excess Gibbs free energies.

Activity coefficient and excess Gibbs free energies of allyl alcohol with trichloroethylene

Isobaric vapour-liquid equilibrium data have been measured for allyl alcohol and trichlorethylene at 200, 500 and 705 Torr for ten compositions spread evenly over the entire liquid mole fraction range, employing a Swietoslawski-type ebulliometer. The mole fraction composition vs. boiling point data are well represented by the Wilson model. The optimum Wilson parameters are used to calculate the vapour compositions, activity coefficients and the excess Gibbs free energy.

Vapor-liquid equilibria in the binary system formed by methyltertiarybutylether with benzene at 490 and 709 mm Hg

Abstract Isobaric vapor-liquid equilibria over the entire composition range are obtained from the measurement of the liquid phase composition versus boiling temperatures by means of a Swietoslawski type ebulliometer at 490 and 709 mm Hg for the methyl-tertiary-butylether(1) + benzene(2) system. The experimental composition (x) versus temperature (t) values could be represented well by both the Wilson and NRTL models. The optimum Wilson parameters have been used to calculate the excess Gibbs free energy.

Excess Enthalpies of Binary Mixtures of 2-Propen-1-Ol with Chloroalkanes and Chloroalkenes at 298.15 K

Abstract Excess molar enthalpies of binary mixtures of 2-propen-1-ol with 1,2-dichloroethane, 1,1,1,-trichloroethane, 1,1,2,2-tetrachloroethane, trichloroethylene and tetrachloroethylene have been measured at 298.15 K using a 1451 Parr model solution calorimeter. The excess enthalpy values are positive in all the systems over the entire range of mole fraction except for the system involving 1,1,2,2-tetrachloroethane. All the excess enthalpy curves are found to be S shaped. Comments on the effect of intramolecular interactions on the intermolecular interactions have been made on the basis of the experimental results.