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Imagine a single polyethelyne (PE) block 2.5×10-4 m thick. At t = 0, one edge of the block is exposed to a solution that contains trans-chlordane, which begins diffusing into the PE block. Assume the solution next to the PE block is well-mixed and maintained at a constant transchlordane concentration. Using concepts from our course, create a mathematical model describing this diffusion process. Use your model to create a figure showing the relative concentration (C(x)/C(x = 0)) as a function of distance into the block after t = 12 h of exposure. Assume that for trans-chlordane the waterPE partition coefficient is log(KPE (Lw/kgPE)) = 5.17 and the diffusivity is log(DPE (m2 /s)) = - 13.51.”

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