Question

Question: Answered & Verified by Expert

Carbon cannot reduce $\mathrm{Fe}_{2} \mathrm{O}_{3}$ to $\mathrm{Fe}$ at a temperature below $983 \mathrm{~K}$ because

ChemistryGeneral Principles and Processes of Isolation of MetalsKCETKCET 2011

Options:

A free energy change for the formation of $\mathrm{CO}$ is more negative than that of $\mathrm{Fe}_{2} \mathrm{O}_{3}$
B $\mathrm{CO}$ is thermodynamically more stable than $\mathrm{Fe}_{2} \mathrm{O}_{3}$
C carbon has higher affinity towards oxygen than iron
D iron has higher affinity towards oxygen than carbon