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Why does physisorption decrease with inc...

Why does physisorption decrease with increase in temperature ?

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The correct Answer is:
Due to decrease in molecular attractive force between adsorbate and adsorbent.
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Explore conceptually related problems

Why dows physisoption decrease with increase of temperature ?

Give reason for the Physisorption decreases with increase in temperature.

Rate of physisorption increases with decrease in temperature increase in temperature decrease in pressure decrease in surface area

Which of the following statements is not true? a. Both physisorption and chemisorption are exothermic. b. Physisorption occurs with increase of free energy. c. Physisorption requires low activation energy but chemisorption requires high activation energy. d. The magnitude of chemisorption increases and that of physisorption decreases with rise in temperature.

Assertion : In physisorption, adsorption decreases with increase in tempetrature. Reason : Lhysisorption is of eothermic nature.

AAKASH INSTITUTE-SURFACE CHEMISTRY -TRY YOURSELF
  1. Which type of gases are readily adsorbed by solids?

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  2. Write any two characteristics of Chemisorption.

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  3. Why does physisorption decrease with increase in temperature ?

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  4. What is the change in mass and composition of catalyst after the compl...

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  5. Write the name of scientist who suggested the term catalyst first?

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  6. Metals of how many groups of periodic table show macimum catalytic act...

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  7. Which catalyst is used to convert alcohol directly to petrol?

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  8. What are optimum temperature and pH for the enzymes to act best ?

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  9. Which enzyme converts milk into curd?

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  10. By which method precipitate is converted into colloids?

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  11. Give one example each of multimolecular and macro-molecular colloids.

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  12. Explain the cleansing action of soaps.

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  13. What is the dispersed phase and dispersion medium in gel?

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  14. Why true solutions do not exhivit tyndall effect?

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  15. Write the name of four methods to coagulate lyphobic colloids

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  16. What is most accepted reason for the presence of charge on colloids?

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  17. Define coagulation value.

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  18. Why adsorption is exothermic ?

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  19. What is the effect on entropy change (Delta S) in adsorption ?

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  20. Which adsorption has low enthalpy of adsorption ?

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