Question

What is heat of adsorption

Answer 1

Adsorption is a surface phenomenon and adsorbate molecules are held to adsorbent due to attractive interactions. Since energy is always released during attractive interactions, adsorption is an exothermic reaction. The amount of heat evolved when 1 mole of an adsorbate gets adsorbed on the surface of an adsorbent is called Molar Heat or Molar Enthalpy of Adsorption.