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Grade 12th passPhysical Chemistry

Which of the following statements is incorrect regarding physisorption?
(a) It occurs because of van der Waals forces.
(b) More easily liquefiable gases are adsorbed readily.
(c) Under high pressure, it results in a multimolecular layer on the adsorbent surface.
(d) Enthalpy of adsorption (∆Hadsorption) is low and positive.

Profile image of Harshit Singh
5 Years agoGrade 12th pass
Answers icon

1 Answer

Profile image of Pawan Prajapati
5 Years ago
Answer ::

Physical adsorption is an exothermic process. Enthalpy of adsorption (∆Hadsorption) is low and negative.
Hence option (d) is the answer.


Thanks

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