Calorimetric Heats of Ionization of Aqueous Benzoic Acid from 5–100 °C and Derived Thermodynamic Quantities
- 15 August 1974
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 52 (16) , 2912-2918
- https://doi.org/10.1139/v74-424
Abstract
We have made calorimetric measurements at 5.0, 12.5, 25.0, 40.0, 50.0, 65.0, 75.0, 85.0, and 100 &([a-z]+);C that lead to values of ΔH0 of ionization of aqueous benzoic acid at each of these temperatures. These ΔH0 values have been used with pK = 4.204 at 25.0 °C for calculation of pK values from 5 to 100 &([a-z]+);C and also ΔCp0 of ionization values over this range. Usefulness of various extrapolation functions for ΔH0, ΔCp0, and pK up to 225 °C has been investigated.Keywords
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