Question

Difference between langmuir and bet isotherm

Answer 1

There is a fundamental difference between both models. Langmuir's model was a theoretical construct, while the Freundlich isotherm is empirical. In the Langmuir model, it is assumed that at maximum coverage, there is only a monomolecular layer on the surface. This means that there is no stacking of adsorbed molecules..

Answer 2

Answer:

Answers. Langmuir adsorption model considers that only a monolayer of adsorbate can be formed on top the surface. In contrast, BET model considers multilayer formation. ...Langmuir will consider that multilayers can only form as the first adsorbed layer, thus resulting in an exaggerate (unrealistic) surface area.