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At the equilibrium position in the proce...

At the equilibrium position in the process of adsorption _________ .

A

`DeltaH gt 0`

B

`DeltaH = TDeltaS`

C

`DeltaH gt TDeltaS`

D

`DeltaH lt TDeltaS`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaG = DeltaH- TDeltaS " "`At equilibrium , `DeltaG = 0, " " :. DeltaH-TDeltaS = 0 or DeltaH = TDeltaS`
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ICSE-SURFACE CHEMISTRY -EXERCISE (PART-I ( OBJECTIVE QUESTIONS )) (Complete the followings statements by selecting the correct alternative from the choices given :)
  1. An emulsifier is an agent which:

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  2. Which of the following processes does not occur at the interface of ph...

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  3. At the equilibrium position in the process of adsorption .

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  4. Which of the following interfaces cannot be obtained ?

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  5. The term 'sorption' stands for .

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  6. Extent of physisorption of a gas increases with .

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

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

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

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

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

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

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

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

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

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  16. Which of the following will show Tyndall effect ?

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

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

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

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

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