Chemisorption (chemical adsorption) is_______________________?
Correct answer: C. An irreversible phenomenon
- A. Same as "Van der Waals" adsorption
- B. Characterised by adsorption of heat
- C. An irreversible phenomenon
- D. A reversible phenomenon
Explanation
Chemisorption involves chemical-bond formation between the adsorbate and surface, so it generally has a high heat of adsorption and is treated as irreversible. Van der Waals adsorption is physisorption and is usually reversible.
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