Question
Write three differences between Physisorption and Chemisorption.
✓
Answer
| Physisorption | Chemisorption | |
| 1. | Because of van der Waals forces. | Caused by chemical bond formation. |
| 2. | Reversible. | Irreversible. |
| 3. | Enthalpy of adsorption is low(20-40 kJ/mol). | Enthalpy of adsorption is high(80-240)kJ/mol. |
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