Thermodynamic studies of hydrochloric acid in 95 weight per cent glycerol from E M F measurements at 5 to 45°C

Roy, RabindraN.; Vernon, William; Bothwell, AlfredL.M.

doi:10.1016/0368-1874(71)87018-1

Cited by 12 publications

(6 citation statements)

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“…. + Anx n (20) which is an analog of Equation 19. In using the polynomial for the computation of E°, y is replaced by Eoh9 + RT/F In rru, and χ is replaced by mK In the actual case, the value of the subscript η must be arbitrarily fixed, and its arbitrary value need not be fixed any higher than necessary in order to save computation time.…”

Section: Water-organic Mixed Solvents 219mentioning

confidence: 99%

Computational Techniques of Ionic Processes in Water—Organic Mixed Solvents

Sen

Roy

Gibbons

et al. 1979

Thermodynamic Behavior of Electrolytes in Mixed Solvents—II

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A curve-fitting computational technique for the computation of the standard potential of Ag-AgCl electrode in mixed solvents has been developed. The equations generated from experimental data parallel the mathematical form of Gronwall, LaMer, and Sandved's extended Debye-Hückel Equation for symmetrical electrolytes. Application of this technique to a large number of systems has yielded excellent results. The curve-fitting computational technique has been extended to ionic equilibrium processes. Generated equations seem to support Born's electrostatic model in a dielectric medium as a first approximation. The power of the curve-fitting technique rests on the fact that it does not assume any physical model: it only assumes that the experimental data are good and then proceeds to explore which mechanistic model best rationalizes the empirical equation."jpvuring the past two decades the thermodynamics of chemical processes in mixed and nonaqueous solvents have been studied extensively by a large number of workers (I ). Such studies have merit in their own right, aside from the fact that these studies have extremely important practical implications. In studying various types of chemical equilibria and in studying kinetics, it is sometimes necessary to use mixed-organio-0-8412-0428-4/79/33-177-215$08.50/l

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Section: Water-organic Mixed Solvents 219mentioning

confidence: 99%

Computational Techniques of Ionic Processes in Water—Organic Mixed Solvents

Sen

Roy

Gibbons

et al. 1979

Thermodynamic Behavior of Electrolytes in Mixed Solvents—II

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“…E°m values is about ±0.2 mV in all the solvent mixtures at different temperatures. The sE°m can be expressed as a function of temperature according to sE°m = sE°m 26 oc + bit -25) + c(t -25)2 (6) where t is the temperature in degrees Celsius and b and c are empirical coefficients. These data are summarised in Table IV.…”

Section: Resultsmentioning

confidence: 99%

“…The results have been mainly interpreted in terms of ion-solvent and solvent-solvent interactions by using suitable extrathermodynamic assumptions. Most of the data available in the literature from experiments employing Ag-AgCI and Ag-AgBr electrodes has been confined to mixed amphiprotic solvents (1)(2)(3)(4)(5)(6)(7)(8). Some reports from studies using the same electrodes are also available on mixed aqueous aprotic solvents such as H20-DMSO (9), water-acetonitrile (10), and water-acetone (11).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of transfer of hydrogen halides (hydrogen chloride, hydrogen bromide) in glycerol-dimethylformamide mixtures from electromotive force measurements

Rao¹,

Kalidas²

1990

J. Chem. Eng. Data

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“…The sy± values taken at rounded molalities from a large-scale plot of data at 25 °C are given in Table V. The primary medium effect is a measure of the Gibbs free energy change associated with the transfer of 1 mol of HCI from water to the given solvent at infinite dilution according to HCI(water) = HCI( water-DMF) (9) The Gibbs energy of transfer, AG0*, for the process given by eq 9 was calculated on the mole fraction scale for the various solvent mixtures at 25 °C from the equation AG°* = F(WE°N -8E°n) (10) where WE°N and SE°N represent the standard emfs of the cell 1 in water and solvent, respectively, on the mole fraction scale and are given In Table VI.…”

Section: Resultsmentioning

confidence: 99%

“…Electromotive force measurements on galvanic cells employing hydrogen and silver-silver halide electrodes have been widely used in recent years (1)(2)(3)(4)(5)(6)(7)(8)(9) to determine the thermodynamics of hydrogen halides in aqueous, mixed aqueous and nonaqueous media. Such studies enable us to understand the electrolyte-solvent interactions and also to evaluate the thermodynamics of ion-solvent interactions employing suitable extra thermodynamic assumptions.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of transfer of hydrogen chloride in water-dimethylformamide mixtures from electromotive force measurements

Rao¹,

Kalidas²

1987

J. Chem. Eng. Data

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The standard potentials of Ag-AgCI electrodes In water-dlmethytformamlde (DMF) mixtures In the composition range 10-70 wt % DMF have been determined at four different temperatures from 15 to 30 °C by emf measurements using the cell Pt,H2(g, 1 atm)|HCI,m ),DMF(X ,-HgO,,,)|AgCI-Ag, The primary medium effects and the mean molal activity coefficients In the concentration range 0.01-0.02 mol kg-1 at 25 °C have been evaluated. The standard molal potential sE°m has been expressed as a function of temperature. The thermodynamic parameters for the transfer of HCI from water to water-DMF mixtures have been evaluated from emf data at 25 °C on the mole fraction scale. The transfer energies of hydrogen and chloride Ions have also been determined by employing the tetraphenylarsonlum tetraphenylborate (TATB) reference electrolyte method. The significance of the various thermodynamic quantities associated with the transfer process has been discussed.

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Thermodynamic studies of hydrochloric acid in 95 weight per cent glycerol from E M F measurements at 5 to 45°C

Cited by 12 publications

References 0 publications

Computational Techniques of Ionic Processes in Water—Organic Mixed Solvents

Computational Techniques of Ionic Processes in Water—Organic Mixed Solvents

Thermodynamics of transfer of hydrogen halides (hydrogen chloride, hydrogen bromide) in glycerol-dimethylformamide mixtures from electromotive force measurements

Thermodynamics of transfer of hydrogen chloride in water-dimethylformamide mixtures from electromotive force measurements

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