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प्रश्न
Why do physisorption and chemisorption behave differently with rise in temperature?
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उत्तर
Physisorption involves weak van der Waals forces which weaken with rise in temperature. The chemisorption involves formation of chemical bond involving activation energy and like any other chemical reaction is favoured by rise in temperature.
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संबंधित प्रश्न
Write the differences between physisorption and chemisorption with respect to the following:
(i) Specificity
(ii) Temperature dependence
(iii) Reversibility and
(iv) Enthalpy change
Differentiate between adsorbtion and absorption.
What is the effect of temperature on chemisorption ?
Why is adsorption always exothermic?
Give reason why a finely divided substance is more effective as an adsorbent.
What are the factors which influence the adsorption of a gas on a solid?
How does chemisorption vary with temperature?
Which of the following is true about chemisorption?
Adsorption increases when ____________.
Which among the following is a property of physisorption?
The physical adsorption is due to ____________.
In physisorption adsorbent does not show specificity for any particular gas because ______.
Why is it important to have clean surface in surface studies?
Why is chemisorption referred to as activated adsorption?
What is the role of activated charcoal in gas mask used in coal mines?
In physical adsorption, gas molecules are bound on the solid surface by
Rate of physisorption increase with:-
Write three differences between physisorption and chemisorption.
