Evaluation of Debye–Hückel limiting slopes for water between 0 and 150°C
- 1 January 1980
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 76, 1911-1916
- https://doi.org/10.1039/f19807601911
Abstract
Debye–Hückel limiting slopes for the osmotic coefficient, A, derived from literature measurements of the static dielectric constant and density of water, are properly represented as a function of temperature by a general thermodynamic equation, determined using the method of weighted least-squares. From 0 to 150°C and between atmospheric and the water-saturation pressure, A is best represented by an equation equivalent to A=–16.390 23 + 261.3371/T+ 3.368 9633 ln T–1.437 167(T/100)+ 0.111 995(T/100)2 where T/K = 273.15 +t/°C IPTS-68. Minimum variance, unbiased estimates of the values and their standard errors are tabulated for A and for the limiting slopes for the solute enthalpy, AL, and heat capacity, AJ.Keywords
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