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प्रश्न
Why are powdered substances more effective adsorbents than their crystalline forms?
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उत्तर
Powdered substances are more effective adsorbents than their crystalline forms because when a substance is powdered, its surface area increases and physisorption is directly proportional to the surface area of the adsorbent
संबंधित प्रश्न
What is the effect of temperature on chemisorption ?
Why is adsorption always exothermic?
What are the factors which influence the adsorption of a gas on a solid?
Discuss the effect of temperature on the adsorption of gases on solids.
Give reasons for the following observations :
Powdered substances are more effective adsorbents.
How does chemisorption vary with temperature?
Which of the following is true about chemisorption?
Which among the following is a property of physisorption?
Powdered substances are more effective adsorbents than their crystalline forms because ____________.
The extent of adsorption increases with the ____________.
Extent of physisorption of a gas increases with ______.
Physical adsorption of a gaseous species may change to chemical adsorption with ______.
In which of the following reactions heterogenous catalysis is involved?
(a) \[\ce{2SO2 (g) + O2 (g) ->[NO(g)] 2SO3 (g)}\]
(b) \[\ce{2SO2 (g) ->[Pt(s)] 2SO3 (g)}\]
(c) \[\ce{N2 (g) + 3H2 (g) ->[Fe(s)] 2NH3 (g)}\]
(d) \[\ce{CH3COOCH3 (l) + H2O (l) ->[HCI(l)] CH3COOH (aq) + CH3OH (aq)}\]
Why is it important to have clean surface in surface studies?
Why do physisorption and chemisorption behave differently with rise in temperature?
What is the role of activated charcoal in gas mask used in coal mines?
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:-
Adsorption play no role in:-
Which of the following statements is incorrect regarding physisorptions?
