What is ΔH°rxn for the decomposition of calcium carbonate to calcium oxide and carbon dioxide? CaCO3(s) → CaO(s) + CO2(g)
Substance ΔH°f(kJ/mol)
CaCO3(s) -1206.9
CaO(s) -635.6
CO2(g) -393.5
A) -2236.0 kJ/mol
B) -1449.0 kJ/mol
C) -177.8 kJ/mol
D) 177.8 kJ/mol
E) 2236.0 kJ/mol
Correct Answer:
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