In physical adsorption, as compared to chemisorption, the________________________?
Correct answer: B. Quantity adsorbed per unit mass is higher
- A. Rate of adsorption is controlled by the resistance to surface reaction
- B. Quantity adsorbed per unit mass is higher
- C. Activation energy is very high
- D. Heat of adsorption is very large
Explanation
Physical adsorption involves weak intermolecular forces, commonly permits multilayer adsorption, and has a relatively low heat of adsorption and activation energy. Chemisorption is usually limited to a monolayer and may be controlled by surface reaction resistance.
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