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Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)...

Given : `S_((s))+(3)/(2)O_(2(g))rarrSO_(3(g)+2X Kcal`
`SO_(2(s))+(1)/(2)O_(2(g))rarrSO_(3(g)+Y Kcal`
The heat of formation of `SO_(2)` is `:-`

A

`(2x-y)`

B

`(2x+y)`

C

`(x+y)`

D

`2x//y`

Text Solution

Verified by Experts

The correct Answer is:
A
Subtract equation `(ii)` from `(i)`.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  2. The enthalpy change of a reaction does not depend on

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

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

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

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

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

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  8. A reaction is not feasible if

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

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  10. Identify the correct statement regarding entropy

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  11. The reaction is sontaneous if the cell potential is

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

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  13. Enthalpy of an exothermic reaction is always

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

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

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

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  17. For a melting of a solid at 25^(@)C, the fusion process requires energ...

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  18. The difference between Delta H and Delta U for the combustion of metha...

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  19. The heat of neutralisation is maximum when

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  20. According to the second law of thermodynamics, a process (reaction) is...

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