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The enthalpies of combustion of carbon a...

The enthalpies of combustion of carbon and carbon monoxide are -390 kJ and -278 kJ respectively. The enthalpy formation of carbon monoxide is

A

668 kJ

B

-668 kJ

C

112 kJ

D

-112 kJ

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The correct Answer is:
D
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MARVEL PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP)
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  2. For an adiabatic process

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  5. Hess's law deals with

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  6. If the door of a refrigerator is kept open, then which of the followin...

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  8. The enthalpy change for the reaction C(2)H(2(g))+(5)/(2)O(2(g)) rarr...

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  9. An isolated system is that system in which

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  10. The Delta H for combustion of a substance

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  11. Work done in an isothermal process at constant pressure is

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  12. Molar heat capacity is

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  13. In endothermic reaction

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  14. Identify the state function among the following :

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  15. For the reaction C(2)H(4)(g)+3O(2)(g) rarr 2CO(2) (g) +2H(2)O(l), De...

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  16. For the reaction N(2)(g)+3H(2)(g)to2NH(3)(g), which of the following...

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  17. A system, which can exchange mass as well as energy with its surroundi...

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  18. The heat of combustion of carbon is 394 kJ mol^(-1). The heat evolved ...

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