मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Which of the following is not a favourable condition for physical adsorption?

Advertisements
Advertisements

प्रश्न

Which of the following is not a favourable condition for physical adsorption?

पर्याय

  • High pressure

  • Negative ∆H

  • Higher critical temperature of adsorbate

  • High temperature

MCQ
Advertisements

उत्तर

High temperature

Explanation:

Physical adsorption is favoured at low temperature.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Surface Chemistry - Exercises [पृष्ठ ६४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 5 Surface Chemistry
Exercises | Q I. 8. | पृष्ठ ६४

संबंधित प्रश्‍न

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 ?


How does chemisorption vary with temperature?


How does chemisorption vary with temperature?


Adsorption increases when ____________.


The extent of adsorption increases with the ____________.


In physisorption adsorbent does not show specificity for any particular gas because ______.


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 chemisorption referred to as activated adsorption?


Give an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.


What is the role of adsorption in heterogenous catalysis?


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:-


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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×