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The equation for Freundlich adsorption i...

The equation for Freundlich adsorption isotherm is

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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

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) The degree of adsorption (x/m) at low pressure will be : (x)/(m) =a (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) When "log"((x)/(m)) is plotted against log P, we get a straight line with slope (1/n). (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) When ((x)/(m)) is plotted against (1)/(p) ,we get a straight line slope (1/a) and intercept (b/a). (a) True (b) False

Freundlich adsorption isotherm is applicable at:

MODERN PUBLICATION-SURFACE CHEMISTRY-REVISION EXERCISE (SHORT ANSWER QUESTION)
  1. Give two differences between lyophilic and lyophobic colloids.

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  2. What is heterogeneous catalysis? Give an example.

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  3. The equation for Freundlich adsorption isotherm is

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  4. What is 'Tyndall effect' ? Name two mixtures which show this effect.

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  5. Define the following terms : (i) Kraft temperature (ii) Peptizati...

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  6. CMC (Critical Micelle Concentration) is

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  7. When negatively charged colloids like As(2)S(3) sol is added to positi...

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  8. (a) In reference to Freundlich adorption isotherm write the expression...

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  9. Lyophilic sols are

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  10. (a) In reference to Freundlich adorption isotherm write the expression...

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  11. Why dows physisoption decrease with increase of temperature ?

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  12. Why are powdered substances more effective adsorbent than their crysta...

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  13. Give the decreasing order of flocculating power of the following ions ...

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  14. Explain the cleansing action of soaps.

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  15. Classify the type of colloidal sol in the following based on the basis...

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  16. What is Hardy- Schulze law?

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  17. Write differences between physisorption and chemisorption.

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  18. Why does bleeding stop by rubbing moist alum?

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  19. Distinguish between the meaning of the terms adsorption and absorption...

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  20. Write on difference in each of the following: (a) Multimolecular col...

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