The activity coefficient and related thermodynamic quantities of HCl in 5 wt-% 1-butanol

R. N. Roy; W. Vernon; A. L.M. Bothwell

doi:10.1016/0013-4686(72)90021-7

The activity coefficient and related thermodynamic quantities of HCl in 5 wt-% 1-butanol

R. N. Roy, W. Vernon, A. L.M. Bothwell

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Emf measurements of the cells of the type Pt; H₂ (g, 1 atm)/HCl (m) in 5 wt-% 1-butanol, AgCl/Ag at five different temperatures ranging from 5-45°C were used to derive (i) the standard potentials of the silver/silver-chloride electrode, (ii) the mean activity coefficients of HCl, (iii) the primary and secondary medium effects, (iv) the relative partial molal enthalpy, and (v) the thermodynamic constants for the process of transfer of HCl from water to 5 wt-% 1-butanol-water. The thermodynamic functions were calculated from the E_N° values and their temperature coefficients for 5 wt-% 1-butanol. The standard emf varied with temperature (t, °C) according to the equation E_m° = 0·2029 - 7·135 × 10^-4(t - 25) - 15·21 × 10^-7(t - 25)². The molality of the acid ranged from 0·005 to 0·09 mol/kg. The results are discussed in terms of the acid-base properties and the structure of the solvent.

Original language	English (US)
Pages (from-to)	1057-1063
Number of pages	7
Journal	Electrochimica Acta
Volume	17
Issue number	6
DOIs	https://doi.org/10.1016/0013-4686(72)90021-7
State	Published - Jun 1972
Externally published	Yes

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

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title = "The activity coefficient and related thermodynamic quantities of HCl in 5 wt-% 1-butanol",

abstract = "Emf measurements of the cells of the type Pt; H2 (g, 1 atm)/HCl (m) in 5 wt-% 1-butanol, AgCl/Ag at five different temperatures ranging from 5-45°C were used to derive (i) the standard potentials of the silver/silver-chloride electrode, (ii) the mean activity coefficients of HCl, (iii) the primary and secondary medium effects, (iv) the relative partial molal enthalpy, and (v) the thermodynamic constants for the process of transfer of HCl from water to 5 wt-% 1-butanol-water. The thermodynamic functions were calculated from the EN° values and their temperature coefficients for 5 wt-% 1-butanol. The standard emf varied with temperature (t, °C) according to the equation Em° = 0·2029 - 7·135 × 10-4(t - 25) - 15·21 × 10-7(t - 25)2. The molality of the acid ranged from 0·005 to 0·09 mol/kg. The results are discussed in terms of the acid-base properties and the structure of the solvent.",

author = "Roy, {R. N.} and W. Vernon and Bothwell, {A. L.M.}",

year = "1972",

month = jun,

doi = "10.1016/0013-4686(72)90021-7",

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T1 - The activity coefficient and related thermodynamic quantities of HCl in 5 wt-% 1-butanol

AU - Roy, R. N.

AU - Vernon, W.

AU - Bothwell, A. L.M.

PY - 1972/6

Y1 - 1972/6

N2 - Emf measurements of the cells of the type Pt; H2 (g, 1 atm)/HCl (m) in 5 wt-% 1-butanol, AgCl/Ag at five different temperatures ranging from 5-45°C were used to derive (i) the standard potentials of the silver/silver-chloride electrode, (ii) the mean activity coefficients of HCl, (iii) the primary and secondary medium effects, (iv) the relative partial molal enthalpy, and (v) the thermodynamic constants for the process of transfer of HCl from water to 5 wt-% 1-butanol-water. The thermodynamic functions were calculated from the EN° values and their temperature coefficients for 5 wt-% 1-butanol. The standard emf varied with temperature (t, °C) according to the equation Em° = 0·2029 - 7·135 × 10-4(t - 25) - 15·21 × 10-7(t - 25)2. The molality of the acid ranged from 0·005 to 0·09 mol/kg. The results are discussed in terms of the acid-base properties and the structure of the solvent.

AB - Emf measurements of the cells of the type Pt; H2 (g, 1 atm)/HCl (m) in 5 wt-% 1-butanol, AgCl/Ag at five different temperatures ranging from 5-45°C were used to derive (i) the standard potentials of the silver/silver-chloride electrode, (ii) the mean activity coefficients of HCl, (iii) the primary and secondary medium effects, (iv) the relative partial molal enthalpy, and (v) the thermodynamic constants for the process of transfer of HCl from water to 5 wt-% 1-butanol-water. The thermodynamic functions were calculated from the EN° values and their temperature coefficients for 5 wt-% 1-butanol. The standard emf varied with temperature (t, °C) according to the equation Em° = 0·2029 - 7·135 × 10-4(t - 25) - 15·21 × 10-7(t - 25)2. The molality of the acid ranged from 0·005 to 0·09 mol/kg. The results are discussed in terms of the acid-base properties and the structure of the solvent.

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JO - Electrochimica Acta

JF - Electrochimica Acta

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ER -

The activity coefficient and related thermodynamic quantities of HCl in 5 wt-% 1-butanol

Abstract

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