5.9 Distinguish between the meaning of the terms adsorption and absorption. Give one example of each.
5.9 Distinguish between the meaning of the terms adsorption and absorption. Give one example of each.
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1 Answer
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5.9
Adsorption- The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as adsorption. In this substance accumulate at surface only and does not penetrate into the adsorbent (material on the surface of which adsorption takes place).
Ex- If gases like O2, H2, NH3 taken in a closed vessel containing charcoal then gases get adsorbed on the surface of charcoal and reduce the pressure.
Absorption- In this molecules get distributed uniformly throughout the material Instead of accumulating at the surface.
Ex- When gas like O2 is mixed with water then O2 get distributed throughout the solve
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