Which of the following statements is $NOT$ correct?

  • A
    Physisorption is due to van der Waals forces.
  • B
    Chemisorption forms multimolecular layers.
  • C
    Physisorption is reversible.
  • D
    The enthalpy of adsorption for chemisorption is higher than that for physisorption.

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Similar Questions

What is the difference between physisorption and chemisorption?

Difficult
View Solution

Absorption and adsorption are respectively

Assertion : The enthalpy of physisorption is greater than chemisorption.
Reason : Molecules of adsorbate and adsorbent are held by van der Waal's forces in physisorption and by chemical bonds in chemisorption.

Correct for physical adsorption is

During adsorption,the $\Delta H$ is negative and the magnitude of this negative value

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