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For a spontaneous chemical process, the ...

For a spontaneous chemical process, the free energy change is

A

positive

B

negative

C

either positive or negative

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
By definition, for a spontaneous process, `DeltaG` is always negative.
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A2Z-CHEMICAL THERMODYNAMICS-Entropy, Gibb'S Energy And Spontaneity Of Process
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  2. When reaction is at standard state at equilibrium, then

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  3. For a spontaneous chemical process, the free energy change is

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  4. A reaction has DeltaH=-33KJ and DeltaS=-58(J)/(H) . This reaction woul...

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  5. Which of the following statement (s) is/are correct? Statement (i) :...

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  6. The process of evaporation of a liquid is accompanied by

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  7. During winters, moisture condenses in the from of dew and can be seen ...

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  8. Combustion of sucrose is used by aerobic oranisms for providing energy...

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  9. At 0^(@)C , ice and water are in equilibrium and DeltaS and DeltaG for...

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  10. In which case, a spontaneous reaction is possible at any temperature

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  11. When a bottle of perfume is opened, odorous molecules mix with air and...

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  12. Change in entropy is negative for

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  13. In which of the following reactions DeltaS is positive?

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  14. The molar enthlpy of fusion of water is 6.01KJ mol^(-1) . The entropy ...

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  15. When ice melts into water, entropy

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  16. The value of free energy change of an equilibrium process is

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  17. The standard entropies of N(2)(g),H(2)(g) and NH(3)(g) are 191.5, 192....

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  18. One mole of an ideal gas at 25^(@)C is subjected to expand reversible ...

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  19. The entropy change for the reaction given below is 2H(2)(g)+O(2)(g)r...

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  20. The a reaction to be spontaneous at all temperature

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