The shape of the adsorption isobar for physic | vedclass

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(D) In the case of physisorption,the process is exothermic and the extent of adsorption $(x/m)$ decreases with an increase in temperature $(T)$. This

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(D) In the case of physisorption,the process is exothermic and the extent of adsorption $(x/m)$ decreases with an increase in temperature $(T)$. This is represented by a downward sloping curve.In the case of chemisorption,the process requires activation energy,so the extent of adsorption $(x/m)$ increases initially with an increase in temperature $(T)$ and then decreases as the desorption process dominates at higher temperatures. This is represented by a curve that increases to a maximum and then decreases.

The shape of the adsorption isobar for physical adsorption and the adsorption isobar for chemisorption,respectively,are:

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