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For reduction of ferric oxide by hydroge...

For reduction of ferric oxide by hydrogen , `Fe_(2)O_(3)(s)+3H_(2)(g)rarr2Fe(s)+3H_(2)O(l)`.
`Delta H_(300)^(o)= -26.72 kJ`. The reaction was found to be too exothermic. To be convenient, it is desirable that `DeltaH^(0)` should be at the most `-26 kJ`. At what temperature difference it is possible ?
`C_(p)[FeO_(3)]=105, C_(p)[Fe(s)]=25, C_(p)[H_(2)O(l)]=75, C_(p)[H_(2)(g)]=30` (all are in J/mol)

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