The reactants are C₃H₈ and O₂. The energy to break the bonds in all the reactants (1 mole of C₃H₈ and 5 moles O₂) are 6488 kJ. The products are H₂O and CO₂. The energy to create bonds in the products are 8542 kJ. The heat of reaction is -2054 kJ. It is an exothermic reaction.

a) 6488 kJ
b) 8542 kJ
c) -2054 kJ
d) 2896 kJ