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Given that C+O(2)rarrCO(2),DeltaH^(@)=-x...

Given that `C+O_(2)rarrCO_(2),DeltaH^(@)=-xKJ` and `2CO+O_(2)rarr2CO_(2),DeltaH^(@)=-yKJ` The enthalpy of formation of carbon monoxide will be

A

`y-2x`

B

`(2x-y)/(2)`

C

`(y-2x)/(2)`

D

`2x-y`

Text Solution

Verified by Experts

The correct Answer is:
C
`C(s)+1//2O_(2)toCO_(2)(g)`. Divide eqn. `(ii)` by `2` and then subtract from equation `(i)`.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  2. Heat capacity is

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  3. Given that C+O(2)rarrCO(2),DeltaH^(@)=-xKJ and 2CO+O(2)rarr2CO(2),Delt...

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  4. The enthalpy change of a reaction does not depend on

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  5. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

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  6. NH(3)(g)+3Cl(2)toNCl(3)(g)+3HCl(g),DeltaH(1) N(2)(g)+3H(2)(g)to2NH(3...

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  7. When enthalpy and entropy change for a chemical reaction are -2.5 xx10...

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  8. The bond dissociation energy of gaseous H(2),Cl(2) and HCl are 104,58 ...

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  9. At constant TandP,Which of the following statements is correct for the...

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  10. A reaction is not feasible if

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  11. One mole of an ideal gas at 300K is expanded isothermally from an init...

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  12. Identify the correct statement regarding entropy

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  13. The reaction is sontaneous if the cell potential is

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  14. In an endothermic reaction, the value of DeltaH is

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  15. Enthalpy of an exothermic reaction is always

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  16. DeltaH for solid to liquid transitions for protein A and B are 2.73 kc...

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  17. The heat absored at constant volume is equal to the system's change in

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  18. Which of the following holds good to the laws of thermodynamics for th...

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