Surface ChemistryHard

Question

Which of the following statements is incorrect regarding physiosorptions ?

Options

A.It occurs because of vander Waal’s forces.
B.More easily liquefiable gases are adsorbed readily.
C.Under high pressure it results into multi molecular layer on adsorbent surface.
D.Enthalpy of adsorption (ᐃHadsorption) is low and positive.

Solution

Enthalpy of adsorption regarding physissorption is not positive and it is negative.

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