Below point 'A' `FeO` can __________

Options

A. Be reduced by carbon monoxide only
B. Be reduced by both carbon monoxide and carbon
C. Be reduced by carbon only
D. Not be reduced by both carbon and carbon monoxide

Answer

A

Explanation

Below point A Gibbs free energy change for the formation of `CO_2` from `CO (Delta G_(CO "," CO_2)^@)` has lower value (more negative value) than Gibbs free energy change for the formation of `FeO(Delta G_(Fe","FeO))`. Hence, FeO will be reduced by CO only below point A.