Reverse diffusion refers to a situation where the transport of particles (atoms or molecules) in a medium occurs towards regions of lower concentration gradients, opposite to that observed during diffusion. This phenomenon occurs during phase separation and is described by the Cahn–Hilliard equation.Reverse diffusion also refers to when water is forced from an region of lower concentration to high.
Famous quotes containing the word reverse:
“We came home from the ridotto so late, or rather so early, that it was not possible for me to write. Indeed we did not go ... till past eleven o’clock: but nobody does. A terrible reverse of the order of nature! We sleep with the sun, and wake with the moon.”
—Frances Burney (1752–1840)