Diffusion Coefficients for Concentrated Liquids

Most methods for predicting D in concentrated liquid solutions attempt to combine the infinite dilution diffusion coefficients (D12)° and (D2,)° in a single function of composition. The Vignes formula is recommended by Reid et al. (1987) [Pg.30]

Example 1.10 Diffusion Coefficients in the System Acetone Benzene (Taylor and Krishna, 1993) [Pg.30]

Estimate the MS and Fick diffusion coefficients for an acetone(l)-benzene(2) mixture of composition xx = 0.7808 at 298 K. The infinite dilution diffusivities are [Pg.30]

From the NRTL equation, for this system at the given temperature and concentration, the thermodynamic correction factor T = 0.871. The experimental value of Dl2 at this [Pg.30]

The predicted value of the Fick diffusivity is in excellent agreement with the experimental result. [Pg.30]

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