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Factors Affecting Adsorption

Removal of ad...

Question

Removal of adsorbate from the surface of adsorbent is called _____.

A

desorption

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B

absorbation

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C

adsorbation

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D

none

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Solution

The correct option is A desorption
Removal of adsorbate from the surface of adsorbent is called desorption.
It is the reverse of adsorption.
For example, when hydrogen gas is adsorbed on the surface of Pt and the temperature is raised or pressure is lowered, some of the hydrogen gas escapes from the surface of Pt. This is known as desorption.

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