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Question: Answered & Verified by Expert
If the absorbate is held on a surface by weak Vander Waal's forces, the absorption process is called
ChemistrySurface ChemistryJEE Main
Options:
  • A Physical adsorption
  • B Chemical adsorption
  • C Heat of adsorption
  • D Enthalpy of adsorption
Solution:
2040 Upvotes Verified Answer
The correct answer is: Physical adsorption
The adsorption in which molecules of adsorbate are held on the surface of adsorbent by Van der Waals forces or weak physical forces is called as physical adsorption or Van der Waals adsorption or physisorption.

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