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The enthalpy changes of formation of the...

The enthalpy changes of formation of the gaseous oxides of nitrogen `(N_(2)O` and `NO)` are positive because of `:`

A

The high bond energy of the nitrogen molecule

B

The high electron affinity of oxygen atoms

C

The high electron affinity of nitrogen atoms

D

The tendency of oxygen to form `O^(2-)`

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A
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ALLEN-THERMODYNAMICS -EXERCISE -3
  1. Which of the following are applicable for a thermochemical equation ? ...

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  2. The correct thermochemical equation is :

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  3. The enthalpy changes of formation of the gaseous oxides of nitrogen (N...

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  4. Delta H for transition of carbon in the diamond form to carbon in the ...

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  5. Which respresent an exothermic reaction :-

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  6. Which of the following value of DeltaH(f)^(@) represent that the produ...

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  7. S(("rhombic"))+O(2(g))rarr SO(2(g)) , Delta H =-297.5 K J S(("monocl...

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  8. Heat of formation, Delta H(f)^(@) of an explosive compound like NCl(3)...

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  9. According to the following reaction C(S)+1//2O(2)(g)rarr CO(g), Delta ...

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  10. Which of the following represents an exothermic reaction :-

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  11. The heat change during the reaction 24g C and 128g S following he chan...

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  12. For the reaction ,3O(2)rarr 2O(3),DeltaH=+ve. We can say that :

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  13. From the reaction P(White) rarr P(Red) Delta H =-18.4KJ, it follows th...

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  14. In Kirchoff's equation which factor affects the heat of reaction :

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  15. For the reaction , H(2)(g)+1//2O(2)(g)=H(2)O(l), Delta C(p)=7.63 "cal/...

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  16. The enthalpy of a reaction at 273 K. is -3.57 KJ. What will be the ent...

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  17. For the reactions, (i) H(2)(g)+Cl(2)(g)rarr 2HCl(g)+ xKJ (ii) H(2)...

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  18. Since the enthalpy of elements in their natural state is taken to be z...

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  19. For the reaction H(2)+I(2)hArr2NHI, DeltaH=12.40 kcal. The heat of f...

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  20. At 300K , the standard enthalpies of formation of C(6)H(5)COOH((s),CO(...

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