Step 1: Understand what adsorption means. Adsorption is when molecules stick to a surface.
Step 2: Learn about the two types of adsorption: physisorption (weak forces) and chemisorption (strong chemical bonds).
Step 3: Know that the Freundlich isotherm is a mathematical model that describes how much of a substance will stick to a surface at different concentrations.
Step 4: Realize that the Freundlich isotherm can be used for both types of adsorption: physisorption and chemisorption.
Freundlich Adsorption Isotherm – A model that describes how the amount of adsorbate on a solid surface varies with pressure or concentration at a constant temperature, applicable to heterogeneous surfaces.
Physisorption vs. Chemisorption – Physisorption involves weak van der Waals forces, while chemisorption involves the formation of chemical bonds.
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