A key step in the extraction of iron from its ore is shown below. This step occu

Question

A key step in the extraction of iron from its ore is shown below.

This step occurs in the 700? to 1200?C zone within a blast furnace. What are the equilibrium partial pressures of CO(g) and CO2(g) when 2.13 atm CO(g) and excess FeO(s) react in a sealed container at 1000?C?

A key step in the extraction of iron from its ore is shown below. FeO(s) + CO(g) Fe(s) + CO2(g) Kp = 0.403 at 1000½C This step occurs in the 700½ to 1200½C zone within a blast furnace. What are the equilibrium partial pressures of CO(g) and CO2(g) when 2.13 atm CO(g) and excess FeO(s) react in a sealed container at 1000½C?

Explanation / Answer

At equilibrium partial pressure CO = 2.13 - x and partial pressure CO2 = x

0.403 = x / 2.13-x
0.858 - 0.403 x = x
0.403 = 1.403 x
x = 0.611 atm = partial pressure CO2
2.13 - 0.611 = 1.51 atm = partial pressure CO

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