Source: wikibot/bet-theory
= BET theory
{wiki=BET_theory}
BET theory, or Brunauer-Emmett-Teller theory, is a scientific model used to describe the physical adsorption of gas molecules on a solid surface and to determine surface area through measurement of gas adsorption. It expands upon the Langmuir isotherm, which considers only monolayer adsorption, by allowing for multilayer adsorption.