Identify the correct statement for the adsorption of a real gas on charcoal at 1 atm and .

Options

A. Gases which are small in molecular size are adsorbed more
B. Decrease in pressure increases the extent of adsorption
C. Decrease in pressure increases the extent of adsorption
D. Gas which has a behaviour similar to an inert gas is adsorbed more

Explanation

Real gases that get liquefied easily are adsorbed to a greater extent because these gases have greater critical temperature and hence greater van der Waal’s forces of attraction.