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The enthalpies of all elements in their ...

The enthalpies of all elements in their standard states are _____

A

1

B

0

C

`lt0`

D

different for each elements

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The correct Answer is:
B
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SURA PUBLICATION-THERMODYNAMICS -ADDITIONAL QUESTIONS
  1. If an automobile engine burns petrol at a temperature of 816^(@)C and...

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  2. which of the following processes are accompanied by an increase of ent...

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  3. The enthalpies of all elements in their standard states are

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  4. A reaction , A+B rarrC+D+q is found to have a positive entropy change ...

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  5. Thermodynamics does not deal with

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  6. Which of the following statement is /are correct ? (i) The presence ...

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  7. When water freezes in a glass beaker , DeltaS of the system …………

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  8. What is correct about DeltaG ?

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  9. DeltaG^(@) of reversible reaction at its equilibrium is

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  10. In an exothermic reaction, heat is evolved and system loses heat to th...

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  11. In an endothermic reaction , the value of DeltaH is always

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  12. Statement I : Combustion of all organic compounds is exothermic in nat...

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  13. For a given reaction DeltaG obtained was having positive sign conventi...

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  14. Pick out the suitable condition in which a spontaneous endothermic rea...

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  15. Statement I : Flow of heat from colder of hotter object is spontaneous...

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  16. Which is true about cyclic process ?

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  17. The standard free energy change DeltaG^(@) is related to k (equilibriu...

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  18. The enthalpy and entropy change for a chemical reaction are -5.3 xx10^...

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  19. This quantity is the energy associated with a chemical that can be use...

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  20. Identify the incorrect statement among the following .

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