At temperature above `1073K` coke can be used to reduce `FeO` to `Fe`. How can you justify this reduction with Ellingham diagram?

Explanation

Using Ellingham diagram, we observe that at temperature greater than 1073 K, `DeltaG_("(C,CO)") lt DeltaG_("(Fe,FeO)")`. We know that according to Ellingham diagram, compound having lower `Delta_(f)G^(ө)` undergo its formation.
Hence, coke can reduce FeO to Fe.