Examlex
Given the following reactions CaCO3 (s) → CaO (s) + CO2 (g) ΔH = 178.1 kJ
C (s,graphite) + O2(g) → CO2(g) ΔH = -393.5 kJ
The enthalpy of the reaction
CaCO3 (s) → CaO (s) + C (s,graphite) + O2 (g)
Is ________ kJ.
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