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BMED+3300+Lecture+2+Slides+082411

BMED+3300+Lecture+2+Slides+082411 - BMED 3300 Biotransport...

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BMED 3300 Biotransport Lecture 2 August 24, 2011. Professor Julie Babensee
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Fick’s First Law of Diffusion A C AB D A J = v z (For diffusion in the z-direction only) dz A dC AB D z A J = , Diffusion z=0 For dilute biological solutions, N A,z = J A,z J A = molar flux in the z-direction relative to the molar average velocity, [mol/cm 2 s] / 3 / A dC = the concentration gradient in the z direction [mol/cm /cm] D AB = mass diffusivity or diffusion coefficient for component A diffusing through component B [cm 2 /s] dz
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