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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.
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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.
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संबंधित प्रश्न
Give reasons for the following observations:
Physisorption decreases with increase in temperature.
Distinguish between the meaning of the terms adsorption and absorption. Give one example of.
What is the difference between physisorption and chemisorption?
What are the factors which influence the adsorption of a gas on a solid?
How does chemisorption vary with temperature?
Answer in one sentence:
Name type of adsorption in which vander Waals focres are present.
Powdered substances are more effective adsorbents than their crystalline forms because ____________.
In physisorption, adsorption is generally ____________.
The physical adsorption is due to ____________.
Extent of physisorption of a gas increases with ______.
Which of the following is not a favourable condition for physical adsorption?
Assertion: Detergents with low CMC are more economical to use.
Reason: Cleansing action of detergents involves the formation of micelles. These are formed when the concentration of detergents becomes equal to CMC.
Which among the following is a false statement?
In physical adsorption, gas molecules are bound on the solid surface by
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:-
Which of the following statements is incorrect regarding physisorptions?
