For the reduction of FeO at the temperature corresponding to point D, which of the following statements is correct ?

Options

A. `DeltaG` value for the overall reduction reaction with carbon monoxide is zero.
B. `DeltaG` value for the overall reduction reaction with a mixture of 1 mol carbon and 1 mol oxygen is positive.
C. `DeltaG` value for the overall reduction reaction with a mixture of 2 mol carbon and 1 mol oxygen will be positive.
D. `DeltaG` value for the overall reduction reaction with carbon monoxide is negative.

Answer

D

Explanation

Since `Delta_f G^(Ɵ)` curve for the formation of FeO from Fe and that of `CO_2` from CO intersect at point D. Therefore, at this point, `Delta_f G^(Ɵ)` for the overall reduction of FeO with CO is zero.