mention two factor which affects the adsorption of gas on solid
Answers
Explanation:
There are various factors that affect the rate of adsorption of a gas on a solid surface. ... The greater the surface area of the adsorbent, the greater is the adsorption of a gas on the solid surface. (3) Effect of pressure. Adsorption is a reversible process and is accompanied by a decrease in pressure.
Answer:
There are various factors that affect the rate of adsorption of a gas on a solid surface.
(1) Nature of the gas:
Easily liquefiable gases such as NH3, HCl etc. are adsorbed to a great extent in comparison to gases such as H2, O2 etc.
This is because Van der Waal’s forces are stronger in easily liquefiable gases.
(2) Surface area of the solid:
The greater the surface area of the adsorbent, the greater is the adsorption of a gas on the solid surface.
(3) Effect of pressure:
Adsorption is a reversible process and is accompanied by a decrease in pressure.
Therefore, adsorption increases with an increase in pressure.
(4) 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.