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Which of the following statements is tru...

Which of the following statements is true ?

A

`DeltaG` may be lesser or greater or equal to `DeltaH`

B

`DeltaG` is always proportional to `DeltaH`

C

`DeltaG` is always greater than `DeltaH`

D

`DeltaG` is always less than `DeltaH`

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaG=DeltaH-TDeltaS`. Depending upon `TDeltaS`, `DeltaG` can be smaller or greater or equal to `DeltaH`.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  5. An adiabatic expansion of an Ideal gas always has

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  6. The favourable conditions for a spontaneous reaction are

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  7. In a closed insulated container, a liquid is stirred with a paddle to ...

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  8. C("diamond")toC("Graphite"), DeltaH=-ve. Then shows that

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  9. If a reaction involves only solids and liquid, which of the following ...

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  10. Mechanical work is specially important in systems that contain

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  11. The law formulated by Nernst is

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  12. Heat exchanged in a chemical reaction at constant temperature and pres...

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  13. Heat of combustion DeltaH^(@) for C(s),H(2)(g) and CH(4)(g) are 94, -6...

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  14. The enthalpy of formation of ammonia is - 46.2 mol^(-1). The enthalpy ...

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  15. The molar heat capacity of water at constant pressure, C(P) , is 75 JK...

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  16. What is the entropy change (in JK^(-1)mol^(-1)) when one mole of ice i...

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  17. For which one of the following equation is DeltaH(reaction)^(@) equal ...

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  19. The enthalpy change for a reaction does not depend upon:

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  20. In an irreversible process taking place at constant T and P and in whi...

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