11. Calculate the enthalpy of reaction (AH). 4CO2 (g) + 6H2O (g) → 2C2H6 (g) + 702 (g) AHfo [CO2(g)] = -393.5 kJ AHfo [H2O(g)] = -241.8 kJ AHfo [C2H6(g)] = -84.7 kJ * Choose 550.6 kJ/mol I bonds create 2855.4 kJ/mol -3194.2 kJ/mol -550.6 kJ/mol

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