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Freundlich adsorption isotherm is applic...

Freundlich adsorption isotherm is applicable at:

A

low pressure

B

high pressure

C

moderate pressure

D

high temperature

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The correct Answer is:
C
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Freundlich adsorption isotherm is obeyed by the adsorption where the adsorbate forms a multimolecular layer on the surface of adsorbent .In such cases, the degree of adsorption varies linearly with pressure but at high pressure, it becomes independent of pressure The relation of Freundlich adsorption isotherm is : (x)/(m)=kP^(1//n) where ,K and n are constants. Langmuir adsorption isotherm is obeyed by the adsorption where the adsorbate forms only a unimolecular adsorbed layer. The mathematical relation of Langmuir isotherm is : (x)/(m) = (aP)/(1+bP) Freundlich adsorption isotherm is valid for chemisorption . (a) True (b) False

Freundlich adsorption isotherm is obeyed by the adsorption where the adsorbate forms a multimolecular layer on the surface of adsorbent .In such cases, the degree of adsorption varies linearly with pressure but at high pressure, it becomes independent of pressure The relation of Freundlich adsorption isotherm is : (x)/(m)=kP^(1//n) where ,K and n are constants. Langmuir adsorption isotherm is obeyed by the adsorption where the adsorbate forms only a unimolecular adsorbed layer. The mathematical relation of Langmuir isotherm is : (x)/(m) = (aP)/(1+bP) In the mathematical relation of Freundlich adsorption isotherm ,the value of (1/n) is 0 le (1)/(n) le 1 . (a) True (b) False

MARVEL PUBLICATION-SURFACE CHEMISTRY-TEST YOUR GRASP
  1. Freundlich adsorption isotherm is applicable at:

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  2. which of the following will have the highest coagulating power for As(...

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  3. Hydophillic collids are stable due to

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  4. In physical adsorption, gas molecules are bound on the solid surface b...

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  5. Lyophilic sols are more stable than lyophobic sols because :

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  6. When the dispersion medium is gas, colloidal solution is

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  7. When a beam to light is passed through colloidal solution.

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  8. Migration of colloidal particles under the influence of electrie field...

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  9. Cleaning action of detergent is due to

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  10. The role of a catalyst is to change

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  11. Emulsion, out of the following is

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  12. Surface tension of hydrophilic solution is

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  13. Which of the following is not a colloid ?

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  14. The number of phases in colloidal system are

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  15. Which of the following does not form lyophilic sol ?

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  16. Crystalloids differ from colloids mainly is respect of :

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  17. Identify the gas which is readily adsorbed by activated charcoal?

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  18. The process of migration of dispersion medium under the influence of e...

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  19. The curve between adsorption and pressure at constant temperature is c...

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  20. Cloud represents an example

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  21. A colloidal solution of blood is an example of

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