Estimate the amount of CO₂ produced per kilogram of CaCO₃ in the calcination reaction (9.10). In addition to the CO₂ released in the reaction, include the CO₂  emitted if coal is burned (at 100% efficiency) to supply the enthalpy of reaction and the energy necessary to heat the reactants to 890 ^◦C. You can assume that the heat capacity of CaCO₃ is Ĉp ≅ 0.09 kJ/mol K, and assume that the coal is pure carbon so ΔH^f = 0.