What do you understand by activation of adsor | vedclass

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(N/A) Activation of an adsorbent refers to the process of increasing its adsorbing power.Some ways to achieve this are:$(i)$ By increasing the surface

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(N/A) Activation of an adsorbent refers to the process of increasing its adsorbing power.
Some ways to achieve this are:
$(i)$ By increasing the surface area of the adsorbent: This is achieved by breaking the adsorbent into smaller pieces or converting it into a fine powder.
$(ii)$ By specific chemical or physical treatments: For example,wood charcoal is activated by heating it between $650 \ K$ and $1330 \ K$ in vacuum or air. This process expels all previously adsorbed gases,thereby creating more vacant sites for the adsorption of other gases.

What do you understand by activation of adsorbent? How is it achieved?

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