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Adsorption is always exothermic in natur...

Adsorption is always exothermic in nature , Do you agree ?

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For difinition of adsorption , consult section 1.
For the nature of adsorption , consult section 2.
For the types of adsorption , consult section 3.
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Adsorption is always exothermic in nature , Do tor agree ?

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The correct statements pertaining to the adsorption of a gas on a solid surface are (i) Adsorption is always exothermic (ii) Physisorption may transform into chemisorption at high temperature (iii) Physisorption increases with increasing temperature but chemisorotion decrease with increasing temperature (iv) Chemisorption is more exothermic than physisoption, however, it is very slow due to higher energy of activation

DINESH PUBLICATION-SURFACE CHEMISTRY -QUESTION FROM BOARD EXAMINATIONS
  1. Give reasons for the following observations : (a) Physisorption decr...

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  2. Out of BaCl(2) and KCl, which is more effective in causing coagulation...

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  3. Adsorption is always exothermic in nature , Do you agree ?

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  4. According to Hardy Schulze rule, the power of coagulation of an ion de...

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  5. What is sorption.

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  6. Why are powdered substance more effective adsorbent than their crystal...

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  7. Homogeneous And Heterogeneous Catalysis

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  8. Write the main reason for the stability of colloidal sols.

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  9. Difine the following terms : (i) Pepization (ii) Zeta potential (iii...

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  10. What are associated colloids ?

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  11. Write one similarity between physisorption and chemisorption.

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  12. Write one difference in each of the following: (i) Lyophobic and Lyo...

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  13. How is Brownain movement responsible for the stability of sol ?

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  14. Name the promoter used in the Haber's process for the manufacture of a...

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  15. The charge on the lyophobic sol particles is due to

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  16. What is an adsorption isotherm? Describe Freundlich adsorption isother...

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  17. What happens when : (a) freshly prepared precipitate of Fe(OH)(3) is...

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  18. (a) Explain how phenomenon of adaorption findss application in heterog...

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  19. Adsorption of gases on solid surface is exothermic because :

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  20. Write differences between physisorption and chemisorption.

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