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If DeltaH(f)^(0) " for" H(2)O(2(l)) and ...

If `DeltaH_(f)^(0) " for" H_(2)O_(2(l)) and H_(2)O_((l)) " are " -188 kJ mol^(-1) and -286 kJ mol^(-1)`, what will be the enthalpy change of the reaction `2H_(2)O_(2(l)) rarr 2H_(2)O_((l)) + O_(2(g)) =`?

A

`146 kJ mol^(-1)`

B

`-196 kJ mol^(-1)`

C

`-494 kJ mol^(-1)`

D

`-46.88` kCal `"mole"^(-1)`

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The correct Answer is:
B, D
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-Practice Sheet- Exercise-II
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  10. If DeltaH(f)^(0) " for" H(2)O(2(l)) and H(2)O((l)) " are " -188 kJ mol...

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  11. Chemical reactions are invariably associated with the transfer of ener...

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  12. Chemical reactions are invariably associated with the transfer of ener...

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  13. Chemical reactions are invariably assocated with the transfer of energ...

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  19. Heat of formation of 2 moles of NH(3)(g) " is" -90 kJl bond energies o...

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  20. If S + O(2) rarr SO(2), DeltaH= -398.2kJ SO(2) + (1)/(2) O(2) rarr S...

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