Based on the intersection of the and lines on the Ellingham diagram (which occurs at approximately or ), which statement correctly dictates the choice of reducing agent in a Blast Furnace?

Question

Based on the intersection of the $C \rightarrow CO$ and $CO \rightarrow CO_2$ lines on the Ellingham diagram (which occurs at approximately $710^\circ C$ or $983 K$), which statement correctly dictates the choice of reducing agent in a Blast Furnace?

Prashant Kotian · Accepted Answer

Correct answer: C. In the Ellingham diagram, the line that is lower at a given temperature represents the more stable oxide, and thus the better reducing agent. Below , the line is below the line, making the primary reducing agent in the upper, cooler zones of the blast furnace.

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