Mass transfer in laminar boundary layer flow of power- law fluids

7 Mass transfer in laminar boundary layer flow of power-law fluids 

The basic equation for mass transfer by molecular diffusion is Pick s law 

Ca is the molar concentration of the diffusing component, and Dab is the molecular dilfusity. 

This equation is analogous to Fourier s law for heat transfer by conduction  

It will be seen that there is a synergy between the two equations, pCpT the heat content per imit volume being equivalent to Ca, the molar concentration of the diffusing component. 

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