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A particular adsorption process has the ...

A particular adsorption process has the following characteristics : (i) It arises due to vander Waals forces and (ii) it is reversible. Identify the correct statement that describes the above adsorption process :

A

Adsorption is monolayer.

B

Adsorption increases with increase in temperature

C

Enthalpy of adsorption is greater than `100 kJ mol^(-1)`

D

Energy of activation is low

Text Solution

Verified by Experts

The correct Answer is:
D
The characteristics given suggests that this should be physical adsorption
Physical adsorption usually takes place at low temperature and decreases with increase in temperature. The force of attraction holding the adsorbate are van der Waal.s forces. Heat of adsorption is low. It is reversible and forms multimolecular layer. It does not acquire any activation energy
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DISHA PUBLICATION-SURFACE CHEMISTRY-Exercise-2 :Concept Applicator
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  9. In freundlich adsorption isotherm, the value of 1/n is :

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