(a) Compare physisorption and chemisorption on the basis of
(i) specificity, and
(ii) enthalpy of adsorption.
(b) Differentiate between adsorption and absorption.
(a)
Physiorption
Chemisorption
(b) In adsorption, the substance is concentrated only at the surface while in absorption, the substance is uniformly distributed throughout the bulk of the solid
hence, adsorption is a surface phenomenon while absorption is a bulk phenomenon