Question: Solid CaCO 3 is placed in a closed container and heated to 800C. What is the equilibrium concentration of CO 2 in the following equilibrium,

Solid CaCO₃ is placed in a closed container and heated to 800°C. What is the equilibrium concentration of CO₂ in the following equilibrium, for which K = 2.5 × 10^–3?

CaCO3(s) CaO(s) + CO(g)

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