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MHT CET202122 Sep 2021Morning ShiftChemistrySurface ChemistryActual

Which among the following is true for chemisorption?

Options

  1. AHeat of adsorption is in the range of 20-40 ~kJ ~mol ⁻¹
  2. BIt is multimolecular layered
  3. CVan der Waals forces are involved
  4. DIt is favored at high temperature up to certain limit

Correct answer

D. It is favored at high temperature up to certain limit

Step-by-step solution

Chemical adsorption - It is caused by chemical bond formation. - Heat of adsorption is high. - High temperature is favorable. It increases with increase of temperature. - It forms unimolecular layer.

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