Which of the following assertions about the extent of physisorption is correct?

Step-by-step solution

Physisorption is an exothermic process. According to Le Chatelier's principle, an increase in temperature shifts the equilibrium in the backward direction, leading to desorption. Thus, the extent of physisorption decreases with an increase in temperature. Additionally, the extent of physisorption increases with an increase in the surface area of the adsorbent and with an increase in the strength of Van der Waals forces between the adsorbate and adsorbent. Answer: Decreases with increase in temperature