Answer :

Capture.PNG


The ∆G for the formation of FeO is less negative than ∆G for the formation of carbon monoxide from carbon. The summation of both the ∆G will be negative about 1073K. Above 1073K the line for formation of FeO lies above the line for the oxidation of C to CO.


So, in this range, coke will be reducing the FeO and will itself be oxidised to CO.


FeO + C Fe + CO


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