Ncert Exercises & Solutions

The correct statement for the reduction of FeO at the temperature corresponding to point D is:

1.	∆G value for the overall reduction reaction with carbon monoxide is zero.
2.	∆G value for the overall reduction reaction with a mixture of 1 mol carbon, and 1 mol oxygen is positive.
3.	∆G value for the overall reduction reaction with a mixture of 2 mol of carbon, and 1 mol of oxygen will be positive.
4.	∆G value for the overall reduction reaction with carbon monoxide is negative.

HINT: See the Ellingham diagram.

Explanation:

At point D, the

∆ G

curve for the formation of

{CO}_{2}

from

CO

and FeO from Fe intersect with each other, therefore, the ΔG value for the overall reduction reaction with carbon monoxide is zero.

Hence, (1) is the correct choice.