# Langmuir adsorption isotherm is deduced using the assumption.

(a) The adsorbed molecules interact with each other.
(b) The adsorbption takes place in multilayers
(c) The adsorption sites are equivalent in their ability to adsorb the particles.
(d) The heat of adsorption varies with the coverage.

Langmuir adsorption isotherm is based on the assumption that every adsorption site is equivalent and that the ability of a particle to bind there is independent of wether nearly sites are occupied or not.