Q. 15

Write three diffe

Answer :

The three differences between physisorption and chemisorption are:

Physisorption Chemisorption

1. It arises because of van der Waals’ forces 1. It is caused by chemical bond formation

2. It is reversible in nature 2. It is irreversible in nature

3. Enthalpy of adsorption is low (20-40 kJ/mol) in this case 3. Enthalpy of adsorption is high (80-240 kJ/mol) in this case

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