Toluene in a Binary Mixture

Consider the diffusion of toluene(l) present in trace amounts in a liquid mixture containing n-tetradecane(2) and n-hexane(3) at a temperature of 25°C. An effective diffusivity of the trace toluene defined by 

TABLE 2.1 Effective Diffusivity of Toluene in a Liquid Mixture of n-Tetradecane-n-Hexane as a Function of the Mole Fraction of n-Tetradecane, X2 

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