Question

What is meant by chemical adsorption?

Answer 1

Chemical adsorption, or chemisorption, is the process where gas molecules attach to the surface of a solid adsorbent through strong chemical (valence) bonds. It is highly specific, usually irreversible, and involves a higher heat of adsorption compared to physical adsorption. It forms only a monolayer on the surface and typically occurs at higher temperatures where chemical interaction is possible.