Question

Why physical adsorption was considered as less important but chemisorption of reactant molecules was a must for a surface to act as a catalyst? But now physical adsorption has also become important why? Explain​

Answer 1

Answer:

Physical adsorption is not very specific ,as all gases are adsorbed on all solids to some extent. Physisorption generally takes place at low temperature and decreases with increase in temperature. Non-Specific means that an adsorbent does not show any particular preference for an adsorbate.

Explanation:

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