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Answer» Difference between absorption and adsorption | Adsorption | Absorption | | (i) It is surface phenomenon, i.e. it occurs only at the surface of the adsorbent. | (i) It is bulk phenomenon, i.e., occurs throughout the body of the material. | | (ii) In this phenomenon, the concentration n the surface of adsorbent is different from that in the bulk. | (ii) In this phenomenon, the concentration is same throughout the material. | | (iii) Its rate is high in the beginning and then decrease till equilibrium in attained. | (iii) Its rate remain same throughout its process. |
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