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Why is adsorption always exothermic?...

Why is adsorption always exothermic?

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During adsorption there is always a decrease in residual forces of the surface i.e, there is decrease in surface energy which appears a s heat.Thus adsorption is always exothermic.
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V PUBLICATION-SURFACE CHEMISTRY-QUESTION BANK
  1. What do you understand by activation of adsorbent & How is it achiev...

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  2. What role does adsorption play in heterogeneous catalysis?

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  3. Why is adsorption always exothermic?

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  4. How are the colloidal solutions classified on the basis of physical st...

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  5. Discuss the effect of pressure and temperature on the adsorption of ga...

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  6. What are lyophilic and lyophobic sols? Give one example of each type, ...

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  7. What are the difference between multiimolecular and macromolecular c...

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  8. what are enzymes? Write in brief the mechanism of enzyme catalysis.

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  9. How are colloids classified on the basis of i.Physical states of com...

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  10. Explain what obsserved i.when a beam of light is passed through a co...

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  11. What are emulsions? What are their different types? Give example of ea...

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  12. What is demusification ? Name two demulsifiers.

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  13. Action of soap is due to emulsification and micelle formation. Commen...

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  14. Give four examples of heterogeneous catalysis.

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  15. What do you mean by activity and selectivity of catalysts?

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  16. Descibe some features of catalysis by zeolites.

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  17. What is shape selective catalysis?

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  18. Explain the following terms: i.Electrophoresis ii.Coagulation iii.Dial...

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  19. Give four uses of emulsions.

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  20. What are associated colloids or micelles?

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