Excess volumes, isentropic compressibilities, and viscosities of binary mixtures containing cyclohexene

1990 ◽  
Vol 68 (2) ◽  
pp. 363-368 ◽  
Author(s):  
P. Raja Sekar ◽  
R. Venkateswarlu ◽  
Kalluru S. Reddy
Keyword(s):  
Free Energy ◽  
Liquid Mixtures ◽  
State Theory ◽  
Excess Volumes ◽  
Excess Enthalpies ◽  
Excess Isentropic Compressibilities ◽  
Excess Viscosity ◽  
Isentropic Compressibilities ◽  
Binary Liquid ◽  
Excess Viscosities

Excess volumes, excess isentropic compressibilities, and excess viscosities have been reported for the binary liquid mixtures of cyclohexene with n-hexane, cyclohexane, benzene, trichloromethane, tetrachloromethane, and 1,4-dioxane at 303.15 K. VE results are negative for mixtures of cyclohexene with n-hexane and tetrachloromethane and are positive for the remaining systems. [Formula: see text] values are negative for mixtures of cyclohexene with n-hexane and positive for all other systems. The data of Δ ln η are positive for cyclohexene with cyclohexane and tetrachloromethane, and negative for the remaining systems. Prigogine–Patterson–Flory equation of state theory has been applied to predict excess volumes and excess enthalpies, and the viscosity relations proposed by Bloomfield are used to calculate free energy and free volume contributions to excess viscosity. Keywords: excess volumes, excess isentropic compressibilities, excess viscosities.

Excess volumes and excess viscosities of binary liquid mixtures: methylisobutylketone + benzene, toluene, chlorobenzene, bromobenzene, and nitrobenzene

1985 ◽  
Vol 63 (11) ◽  
pp. 2824-2828 ◽  
Author(s):  
T. Jayalakshmi ◽  
Kalluru S. Reddy
Keyword(s):  
Liquid Mixtures ◽  
State Theory ◽  
Binary Liquid Mixtures ◽  
Excess Volumes ◽  
Viscosity Data ◽  
Binary Liquid ◽  
Dipole Interactions ◽  
Excess Viscosities ◽  
Induced Dipole ◽  
Benzene Toluene

Excess volumes for the binary liquid mixtures of methylisobutylketone with benzene, toluene, chlorobenzene, bromobenzene, and nitrobenzene have been measured at 303.15 and 313.15 K. Excess volumes were negative for all the systems over the entire range of composition and at both the temperatures. The behaviour of VE as a function of composition and temperature was studied. Viscosity data have also been determined for the five systems at 303.15 K. The excess viscosity, Δ ln η, has been calculated and its behaviour as a function of composition was investigated. The results of VE and Δ ln η have been discussed in terms of dipole – induced dipole and dipole–dipole interactions between the components. VE and Δ ln η were analysed in the light of Prigogine–Patterson–Flory equation of state theory and Bloomfield and Dewan's viscosity relations.

Viscosities, Densities, and Refractive Indices of Binary Liquid Mixtures

1971 ◽  
Vol 49 (15) ◽  
pp. 2605-2609 ◽  
Author(s):  
Miguel Katz ◽  
Pedro W. Lobo ◽  
A. Sancho Miñano ◽  
Horacio Sólimo
Keyword(s):  
Free Energy ◽  
Hydrogen Bonds ◽  
Excess Volume ◽  
Liquid Mixtures ◽  
Refractive Indices ◽  
Dispersion Forces ◽  
Molar Free Energy ◽  
Excess Viscosity ◽  
Binary Liquid ◽  
Free Energy Of Activation

The viscosities, densities, and refractive indices at 25, 30, 35, and 40 °C were determined for the systems: aniline + toluene (A + T), N,N-dimethylaniline + toluene (DMA + T), and aniline + n-butanol (A + B). From the experimental results the excess volume, excess viscosity, and excess molar free energy of activation of flow were calculated. The deviations from ideality for the excess thermo dynamic functions are more important for the systems (A + T) and (A + B) than for (DMA + T). This fact is explained by the existence of dispersion forces in the mixture and by the presence of hydrogen bonds in pure aniline and pure butanol.

scholarly journals Experimental Study of Free Energy of Activation of Flow and Grunberg-Nissan Parameters in Binary Liquid Mixtures

BIBECHANA ◽  
1970 ◽  
Vol 6 ◽  
pp. 9-14
Author(s):  
IS Jha ◽  
RP Koirala ◽  
D Adhikari
Keyword(s):  
Activation Energy ◽  
Experimental Study ◽  
Free Energy ◽  
Binary Mixtures ◽  
Molecular Interactions ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Binary Liquid ◽  
Free Energy Of Activation ◽  
Excess Viscosities

The binary mixtures of cabontetrachloride with isobutylmethylketone and benzaldehyde were studied at 308.15 by measuring viscosities and densities. The derived and excess viscosities, activation energy of flow and Grunberg-Nissan parameters have been calculated. It was found that these parameters are satisfactorily used to predict the strength and nature of molecular interactions. It was found that the strength of interactions in the systems studied is in the following order: CCl4 + IBMK>CCl4 + BDKeywords: Binary liquid; benzaldehyde; carbontetrachlorideDOI: 10.3126/bibechana.v6i0.3932BIBECHANA Vol. 6, March 2010 pp.9-14

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