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PLEASE Calculate the diffusivity of methanol in water at 25C and l atm for a methanol concentration x, = 0.4. The equation of Leffler and

PLEASE

Calculate the diffusivity of methanol in water at 25C and l atm for a methanol concentration x, = 0.4. The equation of Leffler and Cullinan is recommended. The activity coefficient for methanol can be calculated by using the van Laar equation with the constants A,s = 0.3861 and As, = 0.2349.

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