Write the equation representing adsorption of a solute from a solution by a solid adsorbent
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Theory:
Adhesion of atoms, ions, bimolecules or molecules of gas, liquid or dissolved solids to a surface is called adsorption. This process creates a film of the adsorbate –the molecules or atoms being accumulated, on the surface of the adsorbent.
Examples:
Activated charcoal adsorbs gases like CO2 , SO2, Cl2 etc.
Pt or Ni metal kept in contact with a gas adsorbs the gas - Hydrogenation of oils.
Animal charcoal, when added to acetic acid solution and shaken vigorously, adsorbs acetic acid.
Molasses is decolourised by activated charcoal.
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