Naslov
Thermodynamics of hydrobromic acid in 2-butanone + water mixtures (5, 10, and 15 mass per cent) from e.m.f. measurements

Autori
Tominić, Ivo ; Mekjavić, Ivica

Izvornik
Journal of Chemical Thermodynamics (0021-9614) 11 (1979), 2; 167-172

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
hydrobromic acid; 2-butanone + water mixtures; potentiometry; thermodynamic quantities

Sažetak
The e.m.f. of the cell: Pd / H_2(g) / HBr(m) / AgBr / Ag in 2-butanone + water mixtures (containing 5, 10, and 15 mass per cent 2-butanone) was measured at 288.15, 298.15, and 308.15 K in the range of HBr molality from 0.003 to 0.1 mol kg^-1. The standard e.m.f. of the cell has been evaluated at each temperature. The standard thermodynamic quantities for the cell reaction and the reaction of HBr formation have been determined from the standard potentials. Values of mean activity coefficients for hydrobromic acid, and the thermodynamic functions deltaGot, deltaHot, and deltaSot for the transfer of HBr from water to (2-butanone + water) are also reported. The transfer functions have been compared with those for (acetone + water) as well as for (alcohol + water) with small proportions of alcohol.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

Napomena
Projekt 2.03.01.00.21.B

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