Write down the reactions taking place in the blast furnace related to the metallurgy of iron in the temperature range $500-800 \ K$.

(N/A) In the temperature range of $500-800 \ K$ (lower temperature range),the following reduction reactions occur in the blast furnace:
$3 Fe_{2}O_{3} + CO \rightarrow 2 Fe_{3}O_{4} + CO_{2}$
$Fe_{3}O_{4} + 4 CO \rightarrow 3 Fe + 4 CO_{2}$
$Fe_{2}O_{3} + CO \rightarrow 2 FeO + CO_{2}$