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When heated, calcium carbonate (calcite) decomposes to form calcium oxide and carbon dioxide gas CaCO3(s) <---->...

When heated, calcium carbonate (calcite) decomposes to form calcium oxide and carbon dioxide gas
CaCO3(s) <----> CaO(s) + CO2(g)
Using the data below, calculate the equilibrium partial pressure of CO2(g) over a mixture of solid CaO and CaCO3 at 500 ◦C if ∆CP,m for the reaction is independent of temperature over the temperature range between 25 ◦C and 500 ◦C

...............................CaO(s)..........CO2(g).............. CaCO3(s)

∆H◦ f (kJ/mol) .......−635.09 ......−393.51 ............−1206.92

S◦ m (J / mol K) ......39.75 .........213.74 .................92.90

CP,m (J / mol K) ......42.80 ..........37.11 .................81.88

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