What is an adsorption isotherm? Describe Freundlich adsorption Isotherm.
Answers
Explanation:
Adsorption isotherm is the variation of the mass of the gas (adsorbate) adsorbed per gram of the adsorbent with pressure at constant temperature. The Freundlich adsorption isotherm is the mathematical representation for the variation of the extent of adsorption (x/m) with pressure (P) at a given temperature.
Question
What is an adsorption isotherm? Describe Freundlich adsorption Isotherm.
Answer:
Adsorption Isotherm
Adsorption is usually described by isotherms. It is due to the fact that temperature plays an important role or that it has a great effect on the whole process. Moreover, there are several isotherm models that are used to describe the adsorption technique. These include;
Freundlich Theory
Freundlich adsorption isotherm is obeyed by the adsorption where the adsorbate forms a monomolecular layer on the surface of the adsorbent.
A major drawback of Freundlich adsorption isotherm it fails at high pressure. It could not explain the multi-layered adsorption process.