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Why does physisorption decrease with inc...

Why does physisorption decrease with increase of temperature ?

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Physisorption of physical adsorption of a gas on the surfac of a solid is exothermic in nature.
`underset(("Adsorbent"))("Solid")+underset(("Adsorbate"))(Gas)hArr"Gas adsorbed " DeltaH"= -ve`
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Which of the following statements is not true? a. Both physisorption and chemisorption are exothermic. b. Physisorption occurs with increase of free energy. c. Physisorption requires low activation energy but chemisorption requires high activation energy. d. The magnitude of chemisorption increases and that of physisorption decreases with rise in temperature.

Assertion : In physisorption, adsorption decreases with increase in tempetrature. Reason : Lhysisorption is of eothermic nature.