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Physical and chemical adsorption respond...

Physical and chemical adsorption respond differenlty with a rise in temperature. What is this difference and why is it so? lt brgt

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Adsorption isobar for ophysical adsorption shows that the extent of adsorption decreases with the increase in temperature. The adsorption isobar of chemical adsorption shows that the extent of adsorption first increases and then decreases with the increase in temperature. The initial unexpected increase in the extent of adsorption with temperature is due to the fact that the heat supplied acts as the activating energy required for chemical adsorption which is much more than that of physical adsorption.
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