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Diffusion and Imbibition....

Diffusion and Imbibition.

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Diffusion is the movement of substances from the region of their higher concentration to the region of region of lower concentration . No adsorbent is required . Energy is not liberated. Imbibition is the absorption of water by the particles of a solid, without forming a solution . It only occurs in the presence of imbibant . Heat is released .
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