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Question

What are the differences between adsorption and absorption ?

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Solution

Adsorption and absorption can be distinguished as follows:

Adsorption

Absorption

1. It is a surface phenomenon

2. In this process particles of gas and liquid accumulate only on the surface of a solid


3. The rate of adsorption is high initially and decreases with time.

1. It is a bulk phenomenon

2. In this process particles of gas and liquid enter through the surface and gets uniformly distributed throughout of solid.

3. The rate of absorption is same throughout.



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