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At a certain temperature and pressure, a...

At a certain temperature and pressure, ammonia gas is spontaneously adsorbed on the surface of finely divided charcoal. Predict the sign `(+//-)` of `DeltaG, DeltaH` and `DeltaS` in the process.

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`DeltaG=-ve, DeltaH=-ve, DeltaS= -ve`
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CHHAYA PUBLICATION-SURFACE CHEMISTRY-WARM UP EXERCISE
  1. Explain the causes of adsorption.

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  2. Adsorption is an exothermic process. Give reason.

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  3. At a certain temperature and pressure, ammonia gas is spontaneously ad...

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  4. Define with an example of Physisorption .

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  5. Define with an example of Chemisorption.

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  6. Chemisorption is highly specific in nature, whereas physisorption is n...

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  7. Between H(2) and CO(2) gases, which one is likelt to exhibit a higher ...

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  8. Chemisorption is irreversible in nature. Explain.

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  9. Why the activation energy in chemisorption is high ?

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  10. Differentiate between physical and chemical adsorption on the basis of...

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  11. Differentiate between physical and chemical adsorption on the basis of...

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  12. Differentiate between physical and chemical adsorption on the basis of...

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  13. Differentiate between physical and chemical adsorption on the basis of...

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  14. Differentiate between physical and chemical adsorption on the basis of...

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  15. Physical adsorption usually involves the formation of a multilayer of ...

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  16. Why is the heat of adsorption for a physical adsorption less compared ...

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  17. Briefly discuss the extent of adsorption of gas on a solid depends on ...

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  18. Why is low temperature favourable for physisorption?

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  19. Why is the extent of chemisorption higher at moderately high temperatu...

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  20. What do you mean by an adsorption isotherm?

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