Question

Write any four differences between physisorption and chemisorption.

Answer 1

1) Physisorption is non-specific in nature whereas the chemisorption is highly specific in nature.

2)Physisorption decreases with increase in temperature whereas chemisorption increases with increase in temperature.

3)Physisorption is reversible in nature whereas the chemisorption is irreversible in nature.

4)Enthalphy of adsorption is low in case of physisorption whereas enthalphy of adsorption is high in case of chemisorption