What is the standard enthalpy of formation of CaCO3(s) ?
CaO(s) + CO2(g) → CaCO3(s) ; ΔH° = -179.4 kJ
Substance
ΔH°f (kJ/mol)
CaO(s)
-634.9
CO2(g)
-393.5
A) 62.0 kJ
B) -420.8 kJ
C) -849.0 kJ
D) -1207.8 kJ
E) 849.0 kJ
Correct Answer:
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