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Chemisorption needs activation energy. E...

Chemisorption needs activation energy. Explain.

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Activation energy is

Activation energy is:

What is activation energy ?

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.

Given an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.