DIFFUSION OCCURS IN THE MEMBRANE

IN THE MEMBRANE WHERE THE DIFFUSION

ACTUALLY OCCURS:

J = (DA/?x)[CM2 -CM1]

BUT CM2 = K C2 AND CM1 = K C1 SO

J = (DAK/?x)[C2 -C1] = P[C2 -C1] OR

PERMEABILITY = P = (DAK/?x)

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