$\begin{array}{1 1} \text{(a) The enthalpy change for the adsorption of one mole of an adsorbate on the surface of adsorbent is called enthalpy or heat of adsorption.Types of adsorption are Heat adsorption and Thermal adsorption} \\ \text{(b) The enthalpy change for the adsorption of ten mole of an adsorbate on the surface of adsorbent is called enthalpy or heat of adsorption.Types of adsorption are Physical adsorption and Chemical adsorption} \\ \text{(c) The enthalpy change for the adsorption of one mole of an adsorbate on the surface of adsorbent is called enthalpy or heat of adsorption.Types of adsorption are Physical adsorption and Chemical adsorption} \\ \text{(d) none of the above} \end{array} $
