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प्रश्न
Give reasons for the following observations:
Physisorption decreases with increase in temperature.
Why does physisorption decrease with the increase of temperature?
उत्तर
Physisorption is exothermic in nature:
\[\ce{\underset{(Adsobent) (Adsobate)}{Solid + Gas}⇌\underset{(Gas adsorbed on solid)}{Gas/Solid + Heat}}\]
In accordance with Le Chatelier’s principle, physisorption decreases with an increase in temperature. Because the equilibrium will shift in the backward direction, gas will be released from the adsorbed surface.
संबंधित प्रश्न
Why are powdered substances more effective adsorbents than their crystalline forms?
Distinguish between the meaning of the terms adsorption and absorption. Give one example of.
What are the factors which influence the adsorption of a gas on a solid?
Discuss the effect of pressure and temperature on the adsorption of gases on solids.
Write one similarity between Physisorption and Chemisorption
How does chemisorption vary with temperature?
Answer in one sentence:
Name type of adsorption in which the compound is formed.
Which of the following is true about chemisorption?
Adsorption increases when ____________.
Which among the following is true for chemisorption?
Extent of physisorption of a gas increases with ______.
Which of the following is not a favourable condition for physical adsorption?
Why do physisorption and chemisorption behave differently with rise in temperature?
Give an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.
Which among the following is a false statement?
A plot of 10 g (x/m) versus 10 g p for the adsorption of a gas on the surface of a solid gives a straight line with slope equal to:-
Rate of physisorption increase with:-
Chromatography is based on:-
