5.4 What are the factors which influence the adsorption of a gas on a solid? 

Answers (1)

The factors which influence the adsorption of a gas on a solid-

  • Surface area-the greater the surface area of the adsorbent higher is the amount of adsorbent to get absorbed.
  • temperature- Adsorption is an exothermic process. So, physical adsorption readily at a lower temperature and decrease with increase in temperature.
  • Pressure- On increasing pressure, the amount of adsorbate increased as the volume of gas decreased(Le-Chateliers principle)
  • Nature of gas- If the gas is easily liquefiable (NH_{3},HCl) then it gets easily adsorbed on the adsorbent solid or liquid. Because these gases have high van der Waals force so their extent of adsorption is high as compare to H_{2},O_{2}.

 

 

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