Calculate the Heat of Combustion of Propane, C₃H₈,
C₃H₈(g) $\rightarrow$ 3 CO₂(g) + 4 H₂O(g)
from the Enthalpies of the 5

Calculate the heat of combustion of propane, C₃H₈,
C₃H₈(g) + 5 O₂(g) $\rightarrow$ 3 CO₂(g) + 4 H₂O(g)
from the enthalpies of the following reactions.
3 C(s) + 4 H₂(g) $\rightarrow$ C₃H₈(g)   $\Delta$ H_rxn° = -103.85 kJ/mol_rxn
C(s) + O₂(g) $\rightarrow$ CO₂(g)   $\Delta$ H_rxn° = -393.51 kJ/mol_rxn
H₂(g) + 1/2 O₂(g) $\rightarrow$ H₂O(g)   $\Delta$ H_rxn° = -241.83 kJ/mol_rxn