Discuss the effect of pressure and temperature on the adsorption of gases on solids.

(N/A) Effect of pressure: Adsorption is a reversible process and is generally accompanied by a decrease in volume. Therefore,according to Le Chatelier's principle,adsorption increases with an increase in pressure.
Effect of temperature: Adsorption is an exothermic process $(\Delta H < 0)$. Thus,in accordance with Le Chatelier's principle,the magnitude of adsorption decreases with an increase in temperature.