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Question
In chemical adsorption, the adsorption first ______ and then ______ with an increase in temperature.
Fill in the Blanks
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Solution
In chemical adsorption, the adsorption first increases and then decreases with an increase in temperature.
Explanation:
This happens because at lower temperatures, the activation energy is high and the adsorption rate is slow, but as temperature increases, adsorption becomes more favorable up to a point. Beyond that, higher temperature causes desorption, leading to a decrease in adsorption. Hence, adsorption rises initially due to increased reaction rate and then falls due to desorption at higher temperatures.
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