Question

Surface Chemistry Adsorption Isotherms

Answer 1

Answer:

Explanation:

Freundlich Adsorption Isotherm

x/m = K [P^(1/n)]

‘x’ is mass of adsorbate on the mass of adsorbent

⇒ log K/m = 1/n (log P + log K)

It does not apply for the adsorption of gases on solids at a higher pressure

Langmuir Adsorption Isotherm

• The layer of gas adsorbed on the solid adsorbent is one-molecule thick.

• The adsorbed layer is uniform all over the adsorbent.
• There is no interaction between the adjacent adsorbed molecules.