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Zinc oxide is reduced at a constant temperature in a closed reactor using ZnO(s) and C(s) as the only starting materials. The following reactions are assumed to be at thermodynamic equilibrium:
ZnO(s) + C(s) = Zn(g) + CO(g)
2CO(g) = CO2(g) + C(s)
Assume ideal gas behaviour. Based on mole balance, the relationship applicable to the system at equilibrium is

Zinc oxide is reduced at a constant temperature in a closed reactor using ZnO(s) and C(s) as the only starting materials. The following reactions are assumed to be at thermodynamic equilibrium:
ZnO(s) + C(s) = Zn(g) + CO(g)
2CO(g) = CO2(g) + C(s)
Assume ideal gas behaviour. Based on mole balance, the relationship applicable to the system at equilibrium is Correct Answer Pzn = Pco + 2Pco<sub>2</sub>

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