ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The present work proposes a new approach for the calculation of the diffusion coefficients in binary liquid systems. The proposed equation is based on the results obtained by statistical mechanics of transport phenomena in dense media. It does not include viscosity explicitly, and the variables required for the calculation are fundamental in nature; these are the free volume of a molecule obtainable from physical measurements such as velocity of sound and the heat of vaporization of the solute. In spite of its theoretical background, the proposed correlation obtains results on fifty-six different solute-solvent systems with about 13% deviation from the experimental results. The effect of concentration on the diffusion coefficient is very easy to determine and is more in accord with experimental results than can be predicted by other available correlations.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690080313
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