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Which is not correct for physical adsorp...

Which is not correct for physical adsorption ?

A

Adsorption is spontaneous

B

`DeltaH and DeltaS` are negative

C

it is reversible in nature

D

Degree of adsorption increass with temperature

Text Solution

Verified by Experts

The correct Answer is:
D
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OP TANDON-ADSORPTION AND CATALYSIS-OBJECTIVE QUESTIONS (LEVEL-B)
  1. In the presence of a catalyst, the activation energy is lowered by 3 K...

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  2. According to the adsorption theory of catalysis the speed of the react...

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  3. Which is not correct for physical adsorption ?

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  4. Freundlich adsorption isotherm gives a straight line on plotting :

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  5. The incorrect statement pertaining to the adsorption of a gas on a sol...

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  6. Substances which alter the velocity of a reaction by mere presence, wi...

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  7. For the reaction (A to B+C), the energy profile diagram is given in th...

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  8. Following is the variation of physical adsorption with temperature.

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  9. The colloidal system consisting of a liquid adsorbete in a solid adsor...

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  10. Which can adsorbe large volume of hydrogen gas ?

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  11. Which is false for catalyst ?

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  12. The curveshowing the variation of pressure with temperature for a give...

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  13. Which of the following statements is incorrect ?

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  14. Adsorption is the tendency of accumulation of molecular species at the...

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  15. Adsorption is the tendency of accumulation of molecular species at the...

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  16. Which of the following factors are responsible for the increase in the...

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  17. In Langumir's model of adosrption of a gas on a solid surface :

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  18. An enzyme [E] is combined with the substrate [S] as follows: E+S und...

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  19. Which type of graph gives straight line in Langmuir adsorption isother...

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  20. Plot of log against log P is a straight line inclined at an angl...

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