Statistical thermodynamics and viscous flow mechanism of quaternary liquid systems at 298.15 K

Shukla, R. C.; Dwivedi, Sonu; Dubey, Ashish

doi:10.1016/j.molliq.2006.05.003

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…Various empirical and semi‐empirical equations employed for predicting the viscosity of binary fluid solutions have been extended to multicomponent fluid systems (Pandey et al, 1994a; Martins et al, 2001; Shukla et al, 2006, 2007). In literature, some correlations describing quaternary systems are available for excess volume by Shukla et al (1989, 1988) and activity coefficients by Brostow and Sochnski (1975) but these correlations have at least two major defects.…”

Section: Introductionmentioning

confidence: 99%

Viscous behaviour of quaternary fluid solutions at 298.15 K

Shukla¹,

Kumar²,

Singh³

et al. 2009

Can J Chem Eng

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Assuming a quaternary fluid solution to be made up of six binaries, a statistical approach of Flory has been extended to develop the expression for dynamic viscosity of multicomponent system using the concept of absolute rate and free volume approaches of liquid state. A reasonable agreement has been achieved between theory and the experiment for n-hexadecane + carbon tetrachloride + benzene + n-hexane quaternary system at 298.15 over a wide range of composition. An attempt has also been made to explain the nature of the molecular interactions, involved in the light of excess thermodynamic functions whose sign and magnitude depend upon the chain length and size of the component liquids.En supposant une solution de fluide quaternaire composée de six binaires, on a généralisé l'approche statistique de Flory dans le but d'établir l expression pour la viscosité dynamique du système multicomposantà l aide du concept de taux absolu et de l approche des volumes libres de l état liquide. Un accord raisonnable aété trouvé entre la théorie et l expérience pour le système quaternaire n-hexadécane + tétrachlorure de carbone + benzène + n-hexaneà 298,15 pour une vaste gamme de composition. On aégalement tenté d'expliquer la nature des interactions moléculaires, intervenantà la lumière des fonctions thermodynamiques d'excès dont le signe et la grandeur dépendent de la longueur de chaîne et de la quantité des composants liquides.

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