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- W2025863522 abstract "A correlation was developed for predicting limiting mutual diffusion coefficients of gaseous and liquid solutes in normal alkane solvents with carbon numbers ranging from 7 to 28 at temperatures to 570 K. The functional form of the correlation is based on the rough hard sphere theory. The parameters needed in the correlation are the molecular weights and hard sphere diameters of the solute and solvent molecules and molar volume of the solvent. The data used in the development of the correlation included 143 measurements with solute/solvent molecular mass ratios ranging from 0.005 to 2.26 and size ratios ranging from 0.3 to 1.3. The average absolute error in predictions was only 6.3%. When the correlation was used to predict literature values for binary n-alkane systems, the average absolute error was 16.7%. On a établi une corrélation pour prédire les coefficients de diffusion mutuels limitants de solutés gazeux et liquides dans des solvants d'alkane normaux avec des nombres de carbone compris entre 7 et 28 à des températures de 570 K. La forme fonctionnelle de la corrélation est basée sur la théorie des sphères dures. Les paramètres nécessaires dans la corrélation sont les poids moléculaires et les diamètres des sphères dures des molécules des solutés et des solvants ainsi que le volume molaire du solvant. Les données utilisées pour établir la corrélation comprennent 143 mesures, les rapports de masse moléculaire solutés-solvants variant entre 0,0005 et 2,26 et les rapports de taille entre 0,3 et 1,3. L'erreur moyenne absolue dans les prédictions n'est que de 6,3%. Lorsqu'on a utilisé la corrélation pour prédire les valeurs publiées pour les systèmes binaires de rc-alkane, l'erreur moyenne absolue était de 16,7%." @default.
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- W2025863522 date "1990-08-01" @default.
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- W2025863522 title "A correlation for predicting diffusion coefficients in alkanes" @default.
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