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Extent of physisorption of a gas increas...

Extent of physisorption of a gas increases with ________ .

A

increase in temperature

B

decrease in temperature

C

decrease in surface area of adsorbent

D

decrease in strength of van der Waals' forces.

Text Solution

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The correct Answer is:
B
decrease in temperature
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Extent of adsorption of adsorbate from solution phase increases with …… .

ICSE-SURFACE CHEMISTRY -EXERCISE (PART-I ( OBJECTIVE QUESTIONS )) (Complete the followings statements by selecting the correct alternative from the choices given :)
  1. Which of the following interfaces cannot be obtained ?

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  2. The term 'sorption' stands for .

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  3. Extent of physisorption of a gas increases with .

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  4. Extent of adsorption of adsorbate from solution phase increases with .

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  5. Which one of the following is not applicable to the phenomenon of adso...

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  6. Which of the following is not a favourable condition for physical adso...

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  7. Physical adsorption of a gaseous species may change to chemical adsorp...

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  8. In physisorption adsorbent does not show specificity for any particula...

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  9. Which of the following is an example of absorption ?

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  10. On the basis of data below predict which of the following gases shows ...

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  11. In which of the following reactions heterogeneous catalysis is involve...

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  12. At high concentration of soap in water, soap behaves as .

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  13. Which of the following will show Tyndall effect ?

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  14. Lyophobic sol can be protected a) by addition of oppositely charged ...

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  15. Freshly prepared precipitate sometimes gets converted to colloidal sol...

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  16. Which of the following electrolytes will have maximum coagulating valu...

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  17. A colloidal system having a solid substance as a dispersed phase and a...

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  18. The values of colligative properties of colloidal solutions are of sma...

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  19. Arrange the following diagrams in correct sequence of steps involved i...

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  20. Which of the following process is responsible for the formation of del...

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