Physics:Reverse diffusion

From HandWiki

Reverse diffusion refers to a situation where the transport of particles (atoms or molecules) in a medium occurs towards regions of higher concentration gradients, opposite to that observed during diffusion. This phenomenon occurs during phase separation and is described by the Cahn–Hilliard equation.[1] Reverse diffusion also refers to when water is forced from a region of lower concentration to high. It can occur in osmosis.

See also

References

  1. Cahn, John W.; Hilliard, John E. (February 1958). "Free Energy of a Nonuniform System. I. Interfacial Free Energy" (in en). The Journal of Chemical Physics 28 (2): 258–267. doi:10.1063/1.1744102. ISSN 0021-9606. Bibcode1958JChPh..28..258C. http://aip.scitation.org/doi/10.1063/1.1744102. 


cs:Reverzní osmóza