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Home » At temperatures above 1073K coke can be used to reduce FeO to Fe. How can you justify this reduction with the Ellingham diagram?
At temperatures above 1073K coke can be used to reduce FeO to Fe. How can you justify this reduction with the Ellingham diagram?
CBSE | Chemistry | Class 12 | Exercise 1 | General Principles and Processes of Isolation of Elements | NCERT Exemplar
At temperatures above 1073K coke can be used to reduce FeO to Fe. How can you justify this reduction with the Ellingham diagram?

At temperature above 1073K coke can be used to reduce FeO to Fe. How can you justify this reduction with Ellingham diagram?

The ∆G formation of FeO is a bit negative than the ∆G formation of carbon monoxide from carbon. Summation of both ∆G will be negative at about 1073K. Above 1073K the FeO production line exceeds the oxidation line of C to CO. Therefore, at this stage, coke will reduce to FeO and will also be oxidize to CO.

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