Which of the following factors generally increase the extent of adsorption of a gas on a given solid — Surface Chemistry Chemistry Question

💡 Solution & Explanation

Increasing surface area directly provides more active sites. Gases with higher critical temperatures have stronger van der Waals forces and are more easily liquefiable, thus they are adsorbed more readily. Decreasing pressure generally reduces physical adsorption. Activating the adsorbent clears its pores of previously adsorbed gases, increasing its available capacity.