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 overall reduction with a mixture of 2 mol carbon and 1 mol carbon and 1 mole oxygen will be positve
D. `DeltaG` value for the overall reduction with carbon monoxide is negative

Answer

A

Explanation

(a) At point D, `DeltaG` curve for formation of `CO_(2)` from CO and FeO from Fe intersect each other therefore, overall reduction of FeO with CO is zero.
Hence , (a) is the correct choice.