Volume Changes on Mixing. II. Systems Containing Acetone, Acetonitrile, and Nitromethane

1962 ◽  
Vol 15 (1) ◽  
pp. 9 ◽  
Author(s):  
I Brown ◽  
F Smith
Keyword(s):  
Concentration Dependence ◽  
Binary Systems ◽  
Excess Entropy ◽  
Volume Changes ◽  
Polar Components ◽  
Entropy Changes ◽  
Heats Of Mixing ◽  
Equilibrium Data

The volume changes on mixing have been measured at 25, 35, and 45 �C for the following binary systems : acetone+acetonitrile, acetone+nitromethane, acetonitrile+nitromethane and each of these polar components with benzene and with carbon tetrachloride.The sign and concentration dependence of the volume changes on mixing of these systems follow closely the excess entropy changes on mixing calculated from the liquid-vapour equilibrium data and heats of mixing previously measured in these laboratories.

EXCESS VOLUMES, VAPOR PRESSURES, AND RELATED THERMODYNAMIC PROPERTIES OF THE SYSTEM ACETONE–CHLOROFORM–BENZENE, AND ITS COMPONENT BINARY SYSTEMS

1966 ◽  
Vol 44 (10) ◽  
pp. 1183-1189 ◽  
Author(s):  
A. N. Campbell ◽  
E. M. Kartzmark ◽  
R. M. Chatterjee
Keyword(s):  
Binary Systems ◽  
Excess Entropy ◽  
Excess Free Energy ◽  
Heat Of Mixing ◽  
Vapor Pressures ◽  
Free Energies ◽  
Volume Changes ◽  
Heats Of Mixing ◽  
Energy Of Mixing ◽  
Free Energy Of Mixing

The volume changes on mixing of the three binary mixtures, acetone–chloroform, benzene–chloroform, acetone–benzene, and the ternary mixture, acetone–chloroform–benzene, and their molar refractivities and viscosities, were determined.Determinations of total and partial vapor pressures were made. The systems acetone–chloroform and benzene–chloroform show negative deviations from Raoult's law. The system acetone–benzene shows positive deviations.The excess Gibbs free energies of mixing have been calculated for all systems. By combining these data with previously measured heats of mixing (1), the excess entropy has also been calculated. The curves representing zero excess volume, zero heat of mixing, zero excess free energy of mixing, and zero excess viscosity as functions of composition in the ternary system do not coincide. It, therefore, must be concluded that they result from compensating effects and do not represent ideality.

Thermodynamic properties of alcohol solutions. II. Ethanol and isopropanol systems

1956 ◽  
Vol 9 (3) ◽  
pp. 364 ◽  
Author(s):  
I Brown ◽  
W Fock ◽  
F Smith
Keyword(s):  
Experimental Data ◽  
Free Energy ◽  
Thermodynamic Properties ◽  
Excess Entropy ◽  
Excess Free Energy ◽  
Published Data ◽  
Entropy Of Mixing ◽  
Heats Of Mixing ◽  
Equilibrium Data

New experimental data are given for the heats of mixing of the systems ethanol+toluene at 35 �C, ethanol+methylcyclohexane at 35 �C, and iso-propanol+benzene at 45 �C and for the liquid-vapour equilibrium data for the latter system at 45 �C. These data have been used together with previously published data to calculate the excess free energy, heat and excess entropy of mixing at even mole fractions for the above systems. These functions have also been calculated from published data for the systems ethanol+benzene at 45 �C and ethanol+2,2,4-trimethylpentane at 25 �C.

Determination of the concentration dependence of the second derivative of Gibbs' energy with respect to composition on the basis of vapour-liquid equilibrium data

1981 ◽  
Vol 46 (12) ◽  
pp. 2989-3002 ◽  
Author(s):  
Josef P. Novák ◽  
Jaroslav Matouš ◽  
Josef Šobr ◽  
Jiří Pick
Keyword(s):  
Gibbs Energy ◽  
Concentration Dependence ◽  
Binary Systems ◽  
Second Derivative ◽  
Liquid Equilibrium ◽  
Equilibrium Data

The course of the second derivative of Gibbs' energy with respect to composition for binary systems is evaluated. The representation of this quantity in terms of different correlation relations (the Wilson, NRTL and UNIQUAC equations and the ASOG and UNIFAC methods) is also discussed.

Heats of mixing of butanone and chloroform with alkanes: Binary systems

1978 ◽  
Vol 43 (3) ◽  
pp. 829-836 ◽  
Author(s):  
Ján Biroš ◽  
Antonín Živný ◽  
Julius Pouchlý
Keyword(s):  
Binary Systems ◽  
Heats Of Mixing

Concentration Dependence of the Surface Tension of Three and Four-Component Systems with Peculiarities in the Surface Tension Isotherms of Lateral Binary Melts

2021 ◽  
Vol 1022 ◽  
pp. 194-202
Author(s):  
R.Kh. Dadashev ◽  
R.A. Kutuev
Keyword(s):  
Experimental Data ◽  
Surface Tension ◽  
Concentration Dependence ◽  
Experimental Error ◽  
Binary Systems ◽  
Experimental Studies ◽  
Study Results ◽  
Component Systems ◽  
Minimum Depth ◽  
Surface Tension Isotherms

The experimental study results of the melts concentration dependence of the surface tension of the four-component indium-tin-lead-bismuth system and its constituent binary systems of indium-tin, indium-lead, indium-bismuth, tin-lead, tin-bismuth, lead-bismuth are presented in the paper. It is shown that the concentration dependence of the melts surface tension of the In-Sn-Pb-Bi four-component system can be predicted from the data on ST (surface tension) values of lateral binary systems. Features in the ST isotherms in the form of a minimum are observed only in the indium-tin lateral system from all lateral binaries. A distinctive feature of the detected minimum is that the minimum depth slightly exceeds the experimental error. Therefore, in addition to the fact that the area of average compositions was studied more thoroughly, we carried out the surface tension measurements by two independent methods. The experimental data obtained by both methods coincide within the experimental error and indicate the extremum availability on ST isotherms. Thus, ST experimental studies by two independent methods confirmed the presence of a flat minimum on ST isotherms of the indium-tin binary system increasing the reliability of the obtained data. The obtained outcomes and their comparison with experimental data have shown that the considered models for predicting surface properties based on data due to similar properties of lateral binary systems adequately reflect the experimental dependences. However, the prediction model based on Kohler's method of excess values describes the experimental curves more accurately.

Isobaric Low-Pressure Vapor–Liquid Equilibrium Data for Ethylbenzene + Styrene + Sulfolane and the Three Constituent Binary Systems

2011 ◽  
Vol 56 (9) ◽  
pp. 3510-3517 ◽  
Author(s):  
Mark T. G. Jongmans ◽  
Jenny I. W. Maassen ◽  
Adriaan J. Luijks ◽  
Boelo Schuur ◽  
André B. de Haan
Keyword(s):  
Binary Systems ◽  
Low Pressure ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Data ◽  
Constituent Binary ◽  
Vapor Liquid
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