Question

Give the Factors affecting adsorption of gases on solids.

Answer 1

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Following are the factors affecting the adsorption of gases by solids.
            1.         Surface area
            2.         Nature of gas
            3.         Temperature
            4.         Pressure


1. Surface Area
                       Adsorption being a surface phenomenon, the extent of adsorption depends upon the surface area. Increase in the surface area of the adsorbent, increases the total amount of gas adsorbed.


2.  Nature of Gas
                     The amount of gas adsorbed by a solid depends upon the nature of gas.


3. Tempreture
                    The process of Adsorption is an Exothermic Reaction. Thus according to Le-chatlier’s Principle, the magnitude of adsorption should increase with decrease in temperature.


4.  Effect of Pressure
                        In order to understand the effect of pressure on adsorption of gas on some solid we must keep in mind that physical adsorption is reversible in nature and is accompanied by decrease in pressure. Therefore, it is expected that extent of adsorption increases with increase in pressure and decrease in pressure causes desorption.

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Answer 2

Answer:dear this topic comes under surface chemistry so please once study it so that it will be easy for u

Explanation: