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Why is chemisorption irreversible ?...

Why is chemisorption irreversible ?

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Gases obtained on desorption not only contain the gases adsorbed but also contain surface compounds formed during chemisorption.
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PRADEEP-SURFACE CHEMISTRY -ADDITIONAL QUESTIONS (VERY SHORT ANSWER QUESTIONS)
  1. Which will adsorb more gas, a lump of charcoal or its powder and why ?

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  2. What is physical adsorption.

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  3. Why is chemisorption irreversible ?

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  4. What is meant by chemical adsorption?

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  5. Of physisorption and chemisorption which type of adsorption has a high...

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  6. Give the expression of Freundlich isotherms.

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  7. What from Freundich adsorption isotherm equation will take at high pre...

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  8. How does increase in tempeature affect both physical and chemical adso...

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  9. Write one similarity between physisorption and chemisorption.

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  10. Define shape selective catalysis. Give an example of a shape selective...

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  11. What is ZSM-5 ? What is its formula ?

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  12. Name two industrial processes in which heterogeneous catalysts are emp...

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  13. Indicate a chemical reaction involving a homogeneous catalyst.

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  14. Write down the heteroheneous catalyst involved in the polymerisation o...

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  15. What is the role of desorption in the process of catalysis ?

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  16. What is the range of particle size in colloidal solution in nm?

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  17. Give an example of an associated colloid?

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  18. Define Kraft temperatuer.

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  19. Write two differences between multimolecular colloids and macromolecul...

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  20. What are lyophobic colloids? Give one example for them.

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