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Ficks Law of Diffusion

Fick's laws of diffusion describe diffusion and were derived by Adolf Fick in 1855. They can be used to solve for the diffusion coefficient, D. Fick's first law can be used to derive his second law which in turn is identical to the diffusion equation.

Fick's first law relates the diffusive flux to the concentration under the assumption of steady state. It postulates that the flux goes from regions of high concentration to regions of low concentration, with a magnitude that is proportional to the concentration gradient (spatial derivative), or in simplistic terms the concept that a solute will move from a region of high concentration to a region of low concentration across a concentration gradient.

Fick's second law predicts how diffusion causes the concentration to change with time.

Wikipedia, Fick's Law of Diffusion

See Also


Chaos
Diffusion
Dispersion
Entropy

Created by Dale Pond. Last Modification: Sunday February 5, 2017 05:56:57 MST by Dale Pond.