Which of the following statements is not correct?

Options

A. Physical adsorption is due to Vander Waals forces
B. Physical adsorption is irreversible
C. Chemical adsorption increases with increase in temperature up to certain limit then decreases
D. Enthalpy of adsorptiori for a chemical adsorption is greater than that of physical adsorption

Answer

B

Explanation

Physisorption is reversible in nature rest all options are correct.