5.8 - this course. However we will consider a special case:...

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Fick’s 2 nd Law for non-steady state processes: (This is more general and in fact, Fick’s 1 st Law is a special case of Fick’s 2 nd Law.) ) ( x c D x t c x x = = (if D in not a function of concentration) 2 2 x c D x The solution of this 2 nd order partial differential equation is beyond the scope of
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Unformatted text preview: this course. However we will consider a special case: For the boundary conditions of: 1. semi-infinite solid 2. surface concentration, c s , is constant...
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