This section talks about the phenomenon of Adsorption and its type i.e. Physisorption and Chemisorption. The factors on which the extent of adsorption of a gas on a solid are also given. Freundlich Adsorption Isotherm is also discussed under these factors.
This section also talks about catalysis, which starts with a discussion about the characteristics of catalytic reactions. Types of catalysts and the nature of solid catalysts have also been discussed. The phenomenon of shape-selective catalysis and enzyme catalysis has also been explained.