Calcium Carbonate Decomposes at High Temperatures to Give Calcium Oxide

question 79

Short Answer

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide.
CaCO₃(s)
CaO(s)+ CO₂(g)
K_P for this reaction is 1.16 at 800°C.A 5.00 L vessel containing 10.0 g of CaCO₃(s)was evacuated to remove the air, sealed, and then heated to 800°C.Ignoring the volume occupied by the solid, what will be the overall mass percent of carbon in the solid once equilibrium is reached?

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