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Which of the following expression repres...

Which of the following expression represent the criterion of spontaneity ?

A

`(deltaS)_(E)`, `V lt 0`

B

`(deltaG)_(T,P) lt 0`

C

`(deltaH)_(T,P) lt 0`

D

`(deltaG)_(S,V) lt 0`

Text Solution

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The correct Answer is:
B, D
Both `(deltaG)_(T,P) lt 0` or `(deltaG)_(S,V) lt0` can be criteria of spontaneity.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. 2H(2)(g)+O(2)(g)to2H(2)O(l)+xkJ In the above reaction

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  2. For which of the following reaction, change of enthalpy equals the cha...

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  3. Which of the following expression represent the criterion of spontanei...

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  4. Which relations among the following is/are correct ?

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  5. Which statements among the following is /are incorrect ?

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  6. Second law of thermodynamics points out that

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  7. which among the following is intensive quantity ?

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  8. The following is(are) endothermic reaction (s):

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  9. Among the following, the intensive property is (properties are) :

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  10. In a flask, colourless N(2)O(4) is in equilibrium with brown-coloured ...

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  11. The gas with the highest heat of combustion is :

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  12. Given NH(3)(g)+3Cl(2)(g)toNCl(3)(g)+3HCl(g)+x(1) N(2)(g)+3H(2)(g)t...

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  13. A scientist needs a refrigeration machine to maintain temperature of -...

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  14. Under the same conditions, how many mL of 1M KOH and 0.5M H(2)SO(4)sol...

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  15. The standard molar heats of formation of ethane, carbon dioxide, and l...

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  16. The enthalpy of combustion of H(2) , cyclohexene (C(6)H(10)) and cyclo...

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  17. Which of the following is an endothermic reaction?

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  18. The heat released when NH(4)OH and HCl neutralise is

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  19. The difference between the heats of reaction at constant pressure and ...

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  20. Which of the following equations represents standard heat of combustio...

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