What is an adsorption isotherm? Describe Freundlich adsorption isotherm.
Adsorption isotherm: The variation of the amount of the gas adsorbed by the adsorbent
with pressure at constant temperature can be expressed by means of a curve. This curve
is termed as adsorption isotherm at a particular temperature.
Freundlich adsorption isotherm: A mathematical equation which describes the relationship
between pressure (p) of the gaseous adsorbate and the extent of adsorption at any fixed
temperature is called Freundlich adsorption isotherm.