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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?
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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.
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संबंधित प्रश्न
Differentiate between adsorbtion and absorption.
Why is adsorption always exothermic?
Distinguish between the meaning of the terms adsorption and absorption. Give one example of.
What is the difference between physisorption and chemisorption?
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Powdered substances are more effective adsorbents.
How does chemisorption vary with temperature?
Which of the following is true about chemisorption?
Adsorption increases when ____________.
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In physisorption, adsorption is generally ____________.
Physical adsorption of a gaseous species may change to chemical adsorption with ______.
What is the role of activated charcoal in gas mask used in coal mines?
What is the role of diffusion in heterogenous catalysis?
Adsorption play no role in:-
Write three differences between physisorption and chemisorption.
Assertion A : Activated charcoal adsorbs SO2 more efficiently than CH4.
Reason R : Gases with lower critical temperatures are readily adsorbed by activated charcoal.
In light of the above statements, choose the correct answer from the options given below.
Which of the following statements is incorrect regarding physisorptions?
Which of the following statements is not true about physisorption?
