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

Question:

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

Solution:

Effect of pressure

Adsorption is a reversible process and is accompanied by a decrease in pressure. Therefore, adsorption increases with an increase in pressure.

Effect of temperature

Adsorption is an exothermic process. Thus, in accordance with Le-Chatelier’s principle, the magnitude of adsorption decreases with an increase in temperature.

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