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

Options

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

Answer

A

Explanation

At point D, `Delta G` curve for formation of `CO_2` from CO and FeO from Fe intersect each therefore, overall reduction of FeO with CO is zero.