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Which plot represent an exothermic react...

Which plot represent an exothermic reaction ?

A

`2HgO(s)+180 K J rarr 2Hg(l)+O_(2)(s)`

B

`N_(2)O(g)+C(s)rarr CO(g)+N_(2)(g)-131 K J`

C

`N_(2)(g)+O_(2)(s)rarr 2NO(g) , Delta E = +181 K J`

D

`C_(2)H_(2)(g)+2H_(2)(g)rarr C_(2)H_(6)(g) , Delta E = -314 K J`

Text Solution

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The correct Answer is:
D
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ALLEN-THERMODYNAMICS -EXERCISE -3
  1. The enthalpy changes of formation of the gaseous oxides of nitrogen (N...

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  2. In the reaction for the transition of carbon in the diamond form to ca...

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  3. Which plot represent an exothermic reaction ?

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

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  5. S (rhombic) + O(2)(g) rightarrow SO(2)(g), Delta H = -297.5 kJ S(mon...

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

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

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

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

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

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

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

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

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

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

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

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  17. For the reaction H(2)+I(2)hArr2HI, DeltaH=12.40 kcal. The heat of fo...

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  18. AT 300K, the standard enthalpies of formation of C(6)H(5)COOH(s), CO(2...

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  19. Enthalpy of a compound is equal to its :- (When it is formed from cons...

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  20. Which of the following equations represent standard heat of formation ...

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