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How physical adsorption will be effected by increase in temperature

Options

  1. AIt will decrease
  2. BIt will increase
  3. CFirst increase then decrease
  4. DNone of these

Correct answer

A. It will decrease

Step-by-step solution

Since adsorption is an exothermic process (taking place with the evolution of heat) therefore in accordance with Lechatelier's principle, the magnitude of physical adsorption will decrease with the increase in temperature. In case of chemisorption the adsorption first increase and then decreases with increase in temperature.

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