Question

why are powdered substances more effective adsorbent than their crystalline form​

Answer 1

Answer:

The extent of adsorption increases with an increase in surface area of the adsorbent. ... Powdered substances are more effective adsorbents than their crystalline form because the surface area of the powdered substance is more and we know that physisorption is directly proportional to the surface area of the adsorbent.

Explanation:

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Answer 2

Answer:

• Adsorption is a surface phenomenon. Therefore, adsorption is directly proportional to the surface area.
• A finely divided substance has a large surface area. Both physisorption and chemisorption increase with an increase in the surface area.
• Hence, a finely divided substance behaves as a good adsorbent.