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During the adsorption of a gas on the su...

During the adsorption of a gas on the surface of a solid which of the following is true ?

A

`Delta G lt0 , Delta Hgt0, Delta S lt0`

B

`Delta G gt 0, Delta H lt0, Delta S lt0`

C

`Delta G lt0, Delta H lt0, Delta S lt0`

D

`Delta G lt0, Delta H lt0, Delta Sgt0`

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Does the adsorption of a gas on the surface of solid increases or decreases with rise in temperature ?

Read the given passage and answers following questions : In 1916 Langmuir proposed theory of adsorption of a gas on the surface of the solid to be made up of elementary sites each of which would adsorb one gas. It is assumed that all adsorption sites are equivalent and the ability of a gas molecule to get bound to any one site is independent whether or not the neighbouring sites are occupied. Additionally, it is also assumed that dynamic equilibrium exists between adsorbed and non adsorbed gas molecule. Following principles can be obtained from Langmuir adsorption isotherm • The gas adsorbed behaves ideally in a vapour phase. • Only monolayer adsorption takes place. •The surface of the solid is homogeneous. • There are no lateral interactive force between the adsorbate molecule. • The adsorbed gas molecules are localized. Who proposed the theory of adsorption of a gas on the surface of the solid ?

In 1916 Langmuir proposed theory of adsorption of a gas on the surface of the solid to be made up of elementary sites each of which would adsorb one gas. It is assumed that all adsorption sites are equivalent and the ability of a gas molecule to get bound to any one site is independent whether or not the neighbouring sites are occupied. Additionally, it is also assumed that dynamic equilibrium exists between adsorbed and non adsorbed gas molecule. Following principles can be obtained from Langmuir adsorption isotherm The gas adsorbed behaves ideally in a vapour phase . Only monolayer adsorption fakes place . The surface of the solid is homogeneous . There are no lateral interactive force between the adsorbate molecule . The adsorbed gas molecules are localized . Who proposed the theory of adsorption of a gas on the surface of the solid?

In 1916 Langmuir proposed theory of adsorption of a gas on the surface of the solid to be made up of elementary sites each of which would adsorb one gas. It is assumed that all adsorption sites are equivalent and the ability of a gas molecule to get bound to any one site is independent whether or not the neighbouring sites are occupied. Additionally, it is also assumed that dynamic equilibrium exists between adsorbed and non adsorbed gas molecule. Following principles can be obtained from Langmuir adsorption isotherm The gas adsorbed behaves ideally in a vapour phase . Only monolayer adsorption fakes place . The surface of the solid is homogeneous . There are no lateral interactive force between the adsorbate molecule . The adsorbed gas molecules are localized . How many layers of adsorption takes place ?

In 1916 Langmuir proposed theory of adsorption of a gas on the surface of the solid to be made up of elementary sites each of which would adsorb one gas. It is assumed that all adsorption sites are equivalent and the ability of a gas molecule to get bound to any one site is independent whether or not the neighbouring sites are occupied. Additionally, it is also assumed that dynamic equilibrium exists between adsorbed and non adsorbed gas molecule. Following principles can be obtained from Langmuir adsorption isotherm The gas adsorbed behaves ideally in a vapour phase . Only monolayer adsorption fakes place . The surface of the solid is homogeneous . There are no lateral interactive force between the adsorbate molecule . The adsorbed gas molecules are localized . What is the nature of adsorption sites ?

In 1916 Langmuir proposed theory of adsorption of a gas on the surface of the solid to be made up of elementary sites each of which would adsorb one gas. It is assumed that all adsorption sites are equivalent and the ability of a gas molecule to get bound to any one site is independent whether or not the neighbouring sites are occupied. Additionally, it is also assumed that dynamic equilibrium exists between adsorbed and non adsorbed gas molecule. Following principles can be obtained from Langmuir adsorption isotherm The gas adsorbed behaves ideally in a vapour phase . Only monolayer adsorption fakes place . The surface of the solid is homogeneous . There are no lateral interactive force between the adsorbate molecule . The adsorbed gas molecules are localized . Which type of equilibrium exists between adsorbed and non adsorbed gas molecule.

In 1916 Langmuir proposed theory of adsorption of a gas on the surface of the solid to be made up of elementary sites each of which would adsorb one gas. It is assumed that all adsorption sites are equivalent and the ability of a gas molecule to get bound to any one site is independent whether or not the neighbouring sites are occupied. Additionally, it is also assumed that dynamic equilibrium exists between adsorbed and non adsorbed gas molecule. Following principles can be obtained from Langmuir adsorption isotherm The gas adsorbed behaves ideally in a vapour phase . Only monolayer adsorption fakes place . The surface of the solid is homogeneous . There are no lateral interactive force between the adsorbate molecule . The adsorbed gas molecules are localized . How many interactive force between the adsorbate molecule ?

Adsorption of a gas on the surface of solid is generally accompanied by decrease in entropy, still it is a spontaneous process. Explain.

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
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  2. Which is correct about physical adsorption ?

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  3. During the adsorption of a gas on the surface of a solid which of the ...

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  4. Negatively charged colloidal solution of clay in water will need for p...

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  5. Identify the positively charged sol.

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  6. The stability of a lyophobic colloid is due to

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  7. The amount of electrolytes required to coagulate a given amount of AgI...

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  8. Gold sol can be prepared by

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  9. For Freundlich isotherm, a graph of log x/m is plotted against log P. ...

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  10. What is the composition of bronze metal alloy?

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  11. The electrolyte having maximum flocculation value for Ag//Ag^+ sol is

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  12. Which of the following curves is in accordance with Freundlich adsorpt...

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  13. Give appropriate answer for the following question- Which alloy is mad...

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  14. Point out the false statement.

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  15. Enzymatic reactions are given in Column I and enzymes in Column II ...

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  16. In which one of the following properties, physisorption and chemisorpt...

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  17. Give appropriate answer of the following question- Which alloy is made...

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  18. Name an alloy which is made up of Fe, Al, Ni, Co?

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  19. Give an appropriate answer of the following question- Which alloy is u...

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  20. Fill the blanks with appropriate answer- Fish plates in the railways t...

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