Using the standard enthalpies of formation calculate the standard enthalpy of reaction for the combustion of propane: C3H8(g) + 5O2 → 3 CO2(g) + 4H2O
CO2(g) = -393.5 kJ/mol O2 = 0 kJ/mol H2O = -284 kJ/mol C3H8(g) = -272.5 kJ/mol

Usa Test prep

Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite