Question

Steel is made by the high temperature reaction of iron oxide.... Use thermodynamics to explain this.​

Answer 1

A very important chemical reaction during steelmaking is the oxidation of carbon. Its gaseous product, carbon monoxide, goes into the off-gas, but, before it does that, it generates the carbon monoxide boil, a phenomenon common to all steelmaking processes and very important for mixing

Answer 2

Explanation:

In general, the reduction of Fe₂O₃, called hematite, does not occur directly to metallic iron, Fe. If the reduction temperature is lower than 570 °C, reduction to Fe occurs stepwise from Fe₂O₃ to Fe₃O₄, called magnetite, and continues to Fe. The intermediate oxide, wüstite Fe₍₁₋ₓ₎O, is not stable at temperatures lower than 570 °C. At reduction temperatures higher than 570 °C, wüstite also must be considered in the reduction progress. In this case, the reduction occurs from Fe₂O₃ via Fe₃O₄ to Fe₍₁₋ₓ₎) (1-x)O and continues afterward to Fe.                                                            

₍₁₋ₓ₎ = (1-x)