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

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

Advertisements
Advertisements

प्रश्न

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

विकल्प

  • involved van der Waals forces are universal.

  • gases involved behave like ideal gases.

  • enthalpy of adsorption is low.

  • it is a reversible process.

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

In physisorption adsorbent does not show specificity for any particular gas because involved van der Waals forces are universal.

Explanation:

Physisorption is not specific to any gas since it involves van der Waals forces and no specific bonds are formed.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Surface Chemistry - Exercises [पृष्ठ ६४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 5 Surface Chemistry
Exercises | Q I. 10. | पृष्ठ ६४

संबंधित प्रश्न

What is the effect of temperature on chemisorption ?


Why is adsorption always exothermic?


Why are powdered substances more effective adsorbents than their crystalline forms?


What is the difference between physisorption and chemisorption?


What are the factors which influence the adsorption of a gas on a solid?


Write one similarity between Physisorption and Chemisorption


Physisorption is reversible while chemisorption is irreversible. Why ?


How does chemisorption vary with temperature?


Which of the following is an example of physisorption?


Adsorption increases when ____________.


Which among the following is true for chemisorption?


The physical adsorption is due to ____________.


Extent of physisorption of a gas increases 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?


Rate of physisorption increase with:-


Adsorption play no role in:-


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?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×