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Which of the following statements is not...

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.

Text Solution

AI Generated Solution

To determine which statement is not true regarding physisorption and chemisorption, we will analyze each statement one by one. ### Step 1: Analyze Statement A **Statement A:** Both physisorption and chemisorption are exothermic. - **Explanation:** Physisorption involves weak van der Waals forces, while chemisorption involves the formation of strong chemical bonds. Both processes release energy, making them exothermic. Therefore, this statement is true. ### Step 2: Analyze Statement B ...
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