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Surface Chemistry — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistrySurface Chemistry2 Marks
Question
Give two important characteristics of physisorption.
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Answer

Important characteristics of physisorption:
  1. It is reversible.
  2. It has a low heat of adsorption.
  3. It has weak van der Waals forces of attraction with adsorbent.
  4. It increases with an increase in pressure.
  5. It forms a multimolecular layer.

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