Free energies of transfer of alkali halides from water to urea-water mixtures at 25�C from EMF measurements

1976 ◽  
Vol 5 (6) ◽  
pp. 431-444 ◽  
Author(s):  
Asim K. Das ◽  
Kiron K. Kundu
Keyword(s):  
Alkali Halides ◽  
Free Energies ◽  
Emf Measurements ◽  
Free Energies Of Transfer

Activity coefficients and standard Gibbs free energies of transfer of NaCl and KCl from water to aqueous solution of 2-butoxyethanol by EMF studies

1993 ◽  
Vol 71 (12) ◽  
pp. 2038-2042 ◽  
Author(s):  
Yvonne MacPherson ◽  
R. Palepu
Keyword(s):  
Activity Coefficients ◽  
Empirical Equation ◽  
Glass Electrode ◽  
Free Energies ◽  
Selective Electrode ◽  
Cell Potential ◽  
Emf Measurements ◽  
Free Energies Of Transfer ◽  
The Mean ◽  
Mean Activity Coefficients

From the emf measurements of the cell Na- or K-glass electrode|2-butoxyethanol, H2O, NaCl or KCl|Cl ion-selective electrode, the standard potentials were determined at 298 K for five different compositions of the solvent. From the emf data the mean activity coefficients of NaCl and KCl were calculated and fitted to an empirical equation. The standard Gibbs free energies of transfer of NaCl and KCl from water to mixtures of water and 2-butoxyethanol were calculated from the cell potential.

Ionization of ethylene glycol in isodielectric acetonitrile + ethylene glycol mixtures at 25 °C

1979 ◽  
Vol 57 (18) ◽  
pp. 2470-2475 ◽  
Author(s):  
Kumardev Bose ◽  
Kiron K. Kundu
Keyword(s):  
Free Energy ◽  
Ethylene Glycol ◽  
Mixed Solvents ◽  
Solvent Composition ◽  
Free Energies ◽  
Emf Measurements ◽  
Free Energies Of Transfer ◽  
Mixed Systems

The autoprotolysis constants (Ksm) of ethylene glycol in isodielectric acetonitrile + ethylene glycol mixtures have been determined at 25 °C from emf measurements on the cell[Formula: see text]From these values, those of δΔG0, the free energy of ionization of ethylene glycol in these mixed solvents relative to that in pure glycol, have been computed. The nature of variation of δΔG0 with solvent composition has been compared with that in two other mixed systems: water + ethylene glycol and methanol + 1,2-propanediol and the intrinsic differences between the solvation characteristics of the various solvents have been pointed out. The standard free energies of transfer of the glycoxide ion, ΔGt0(OEg−), from pure glycol to acetonitrile + glycol mixtures have also been estimated using ΔGt0(H+) values obtained earlier. The glycoxide ion is increasingly desolvated as the acetonitrile content of the solvent increases, as indicated by increasingly positive values of ΔGt0(OEg−). This behaviour has been compared with those of ΔGt0(H+) and ΔGt0(Cl−) determined previously.

Studies on Dissociation Equilibria in Water + Dimethylsulphoxide Mixtures and Free Energies of Transfer of Hydrogen Ions

2010 ◽  
Vol 93 (6) ◽  
pp. 421-424 ◽  
Author(s):  
C. C. Deb ◽  
D. K. Hazra ◽  
S. C. Lahiri
Keyword(s):  
Hydrogen Ions ◽  
Free Energies ◽  
Free Energies Of Transfer

Prediction of phase equilibria and Gibbs free energies of transfer using molecular exchange Monte Carlo in the Gibbs ensemble

2019 ◽  
Vol 486 ◽  
pp. 106-118 ◽  
Author(s):  
Mohammad Soroush Barhaghi ◽  
Jeffrey J. Potoff
Keyword(s):  
Monte Carlo ◽  
Phase Equilibria ◽  
Gibbs Ensemble ◽  
Free Energies ◽  
Free Energies Of Transfer

Free energies of transfer of carbon acids and their conjugate carbanions from water to dimethyl sulfoxide-water mixtures

1988 ◽  
Vol 110 (9) ◽  
pp. 2900-2903 ◽  
Author(s):  
Claude F. Bernasconi ◽  
Richard D. Bunnell
Keyword(s):  
Dimethyl Sulfoxide ◽  
Free Energies ◽  
Free Energies Of Transfer ◽  
Carbon Acids

Determination of the standard free energies of formation for tungsten silicides by EMF measurements using lithium silicate liquid electrolyte

2005 ◽  
Vol 391 (1-2) ◽  
pp. 307-312 ◽  
Author(s):  
Hiroyasu Fujiwara ◽  
Yukitomi Ueda ◽  
Alok Awasthi ◽  
Nagaiyar Krishnamurthy ◽  
Sheo Parkash Garg
Keyword(s):  
Liquid Electrolyte ◽  
Lithium Silicate ◽  
Silicate Liquid ◽  
Free Energies ◽  
Emf Measurements ◽  
Tungsten Silicides
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