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Why does physisorption decrease with the...

Why does physisorption decrease with the increase of temperature ?

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Physisorption is an exothermic process :
`underset("(Adsorbent)")("Solid") + underset("(Adsorbate)")("Gas") hArr ` Gas adsorbed on solid + heat
When temperature is increased, the equilibrium shifts towards the backward direction to neutralise the effect of the change (Le-Chatelier's principle). So, physisorption decreases with increase in temperature.
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