Question

Explain why finely divided substance is more effective adsorbent.

Answer 1

Answer:

Adsorption is surface phenomenon therefore adsorption is directly proportional to the surface area. Finely divided substance has greater surface area. Greater is the surface area of the adsorbent, greater would be its absorbent power. That is why a finely divided surface is more effective as an absorbent.

Answer 2

Answer:Adsorption is directly proportional to the surface area as adsorption is surface phenomenon. A finely divided substance behaves like a good adsorbent because it has a large surface area. Both physisorption and chemisorption increase with an increase in the surface area.