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give an chemical based example for both adsorption and absorption occurs at same time

give an chemical based example for both adsorption and absorption occurs at same time

Grade:Select Grade

1 Answers

Suraj Prasad IIT Patna
askIITians Faculty 286 Points
7 years ago
Absorption and Adsorption refer to different phenomena. Their only commonality is that both involve the physical transfer of a volume of mass or energy. Sorption is the inclusive term, referring to both processes. Desorption is the inclusive term of opposite meaning.

Absorption:

Refers to a transfer of a volume into a volume. It is a permeation or dissolution of a volume of energy or mass (absorbate) into another volume of energy or mass (absorbent). Examples:


Chlorine gas dissolving into water,
Electromagnetic energy (photons of light) into an object: as a seat-belt buckle in sunlight,
Electromagnetic energy (photons of light) into an atom,
Gold dissolving into mercury.


Adsorption:

Refers to the transfer of a volume onto a surface. It is an accumulation, or massing, of energy or matter (adsorbate) onto a surface (adsorbent). Examples:

Buildup of static charge on a glass rod,
Organic substances onto activated charcoal.
Proteins onto biomaterials.
Airborne particles onto a charged surface (ionic filters).

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