Out of C & CO , which is a better reducing agent far FeO?

  1. In the lower part of blast furnace ?
  2. In the upper part of blast furnace ?

 Explain with reason ?

For FeO

Lower part has higher temperature, so C is better reducing agent

Upper part has lower temperature, so CO is better reducing agent

This is explained on the basis of Ellingham diagram

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IN LOWER PART CO IS USED AS THE RXN IS ENDOTHERMIC & TEMP. LOWES TO 900CEL FROM 1500-1700C

FeO +CO----Fe + CO2

IN UPPER PART C IS USED AS THE RXN IS EXOTHERMIC & TEMP. IS 1500-1700C

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