Discuss the factors which influence adsorption of gas on a solid

1 (i) Discuss the factors which influence adsorption of gas on a solid.(ii) Define adsorption isotherm. Explain the various types of adsorption Isotherm.2 (i) Explain the role of adsorbents in pollution abatement.(ii) Define the terms adsorbent and adsorbate giving suitable examples.3.What is a cell? Mention its types.