KEAM 2016 Physics and Chemistry Paper

Physical and chemical adsorption resemble only in effect of surface area, as
(a) Force of attraction is more in case of chemical adsorption.
(b) Enthalpy of adsorption is more negative for chemical adsorption
(c) Chemical adsorption depends on activationenergy. Thus, initially increases then decreases, i.e. above temperature While physical adsorption only decreases with the increase in temperature
(e) Physical adsorption is multilayered while chemical adsorption is a single layer adsorption