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The following two reactionas are known ...

The following two reactionas are known
`FeO_(3)(s)+3CO(g)rarr2Fe(s)+CO_(2)(g)` :
`DeltaH=-26.8KJ`
`FeO(s)+CO(g)rarrFe(s)+CO_(2)(g):DeltaH=-16.5KJ`
The value of `DeltaH` for the following reaction
`Fe_(2)O_(3)(s)+CO(g)rarr2FeO_(2)(s)+CO_(2)(g)` is

A

`+ 10.3` kJ

B

`- 43.3` kJ

C

`- 10.3` kJ

D

`+ 6.2 kJ`

Text Solution

Verified by Experts

The correct Answer is:
D
(a) - 2(b)
i.e. - 26.8 - 2(-16.5)= 6.2 kJ.
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