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Why is adsorption always exothermic ?...

Why is adsorption always exothermic ?

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Adsorption occurs because of attraction between adsorbate and adsorbent molecules and therefore, energy is always released during adsorption. Hence adsorption is an exothermic process.
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Adsorption is aways exothermic.

Why adsorption is exothermic ?

Adsorption is always

Statement: A catalyst always lower the energy of ectivation. Explanation: The catalyst-reactant interaction forms activated adsorbed complex and adsorption is always exothermic.

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

Select the set having correct statements pertaining to the adsorption of a gas on a solid surface (1) physisortion may transform into chemisorption at high temperature (2) chemisorption is more exothermic than physisortion , however it is very slow due to higher energy of activation (3) Adsorption is always exothermic (4) Physiosorption increase with increasing temperature but chemisorption decreases with increasing temperature

Adsorption is always exothermic in nature , Do tor agree ?

Assertion :- The graphical representation of physical adsorption with temp is Reason :- This is weak adsorption & adsorption is exothermic process.

MODERN PUBLICATION-SURFACE CHEMISTRY-NCERT FILE (SOLVED) (NCERT TEXTBOOK EXERCISES )
  1. What do you understend by activation of adsorbent? How is it achieved ...

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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 the basis of physica...

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  5. Disuss the effect of pressure and temperature on the adsorption of gas...

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

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  7. What is the difference between multimolecular and macromolecular collo...

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

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  9. Physical states of components colloids classified on the basis ?

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  10. Nature of dispersion medium colloids classified on the basis ?

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  11. interaction between dispersed phase and dispersion medium colloids cla...

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

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  13. Explain what is observed when ltbr. a. An electrolyte NaCl is added to...

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  14. Explain what is observed when ltbr. a. An electrolyte NaCl is added to...

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  15. What are emulsions ? What are their different types ? Give an example ...

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  16. What is demulsification ? Name two demulsifiers.

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  17. Action of soap is due to emulsification and micelle formation. Comment...

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  18. Give four examples of heterogeneous catalytic reactions.

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

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  20. Descirbe some features of catalysis by zeolites.

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