Question

Give reason why a finely divided substance is more effective as an absorbent

Answer 1

Answer:

•A finely divided substance is more effective as an absorbant as the process of absorption is directly proportional to the surface area i.e. when the area increases the process of absorption also increases and vice versa.

•Thus,a finely divided substance has a large surface area.

• Hence, a finely divided substance behaves as a good adsorbent.

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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.