Combustion of Fossil Fuels Produces CO2

• Consider the combustion of octane (C8H18), a component of gasoline:

2 C8H18(l) + 25 O2(g)  16 CO2(g) + 18 H2O(g)

• The balanced chemical equation shows that 16 mol of CO2 are produced for every 2 mol of octane burned.