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.”
These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction
of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice.
Unethical use is strictly forbidden.