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The following teo reaction are known : ...

The following teo reaction are known :
`Fe_(2)O_(3)(s)+3CO(g)rarr2Fe(s)+3CO_(2)(g)`,
`Delta H= -26.8 kJ`
`FeO(s)+CO(g)rarr Fe(s)+CO_(2)(g)` ,
`Delta H = - 16.5 kJ`
Correct target equation is
`Fe_(2)O_(3)(s)+CO(g)rarr 2FeO(s)+CO_(2)(g), Delta H = ?`

A

`-43.3 kJ`

B

`-10.3 kJ`

C

`+6.2 kJ`

D

`+10.3 kJ`

Text Solution

Verified by Experts

The correct Answer is:
C
eq. (iii) = eq (i) `-2xx` eq (ii)
`Delta H_(3)=Delta H_(1)-2xx Delta H_(2)`
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ALLEN-THERMODYNAMICS -EXERCISE -1A
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  6. In which of following there is decrease in entropy :-

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  7. Which of the following is not a state function :-

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  9. Enthalpy change for the reaction, 4H((g))rarr 2H(2(g)) is -869.6 kJ ...

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  11. Consider the following processes :- {:(,DeltaH(kJ//mol)),((1)/(2)A r...

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  12. The enthalpy of formation of CO(g), CO(2)(g),N(2)O(g) and N(2)O(4)(g) ...

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  13. For adiabatic process which is correct -

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  14. Which of the following is not thermodynamic function -

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  15. Which of the following is intensive property -

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  16. In which of the following reactions,standard reaction entropy change(D...

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  17. Standard enthalpy of vaporisationDeltaV(vap).H^(Theta) for water at 10...

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  18. The enthalpy of funsion of water is 1.435 kcal/mol. The molar entropy ...

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