Which is not correct for physical adsorption ?

Options

A. High pressure
B. Negative `Delta H`
C. Higher critical temperature of adsorbate
D. High temperature

Answer

D

Explanation

Physisorption is a process in which adsorbate get adsorbed on the adsorbent surface by weak van der Waals' force of attraction. On increasing temperature the interaction between adsorbate and adsorbent becomes weak and adsorbate particles get desorbed.