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प्रश्न
Why is it important to have clean surface in surface studies?
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उत्तर
It is important to have clean surface as it facilitates the adsorption of desired species.
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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
What is the effect of temperature on chemisorption ?
Write any two characteristics of chemisorption.
What is the difference between physisorption and chemisorption?
Give reason why a finely divided substance is more effective as an adsorbent.
Write one similarity between Physisorption and Chemisorption
Physisorption is reversible while chemisorption is irreversible. Why ?
Give reasons for the following observations :
Powdered substances are more effective adsorbents.
Adsorption increases when ____________.
Chromatography is based on the principle of ____________.
The extent of adsorption increases with the ____________.
Which of the following is not a favourable condition for physical adsorption?
What is the role of diffusion in heterogenous catalysis?
What is the role of adsorption in heterogenous catalysis?
Chromatography is based on:-
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.
