Question

Using the equations and enthalpy values provided, which mathematical expression can be used to determine the unknown enthalpy change of the decomposition of propane?

3 C + 3 O2 yields 3 CO2 deltaH =-1182 kJ

4 H2 + 2 O2 yields 4 H2O deltaH = -1144 kJ

C3H8 + 5 O2 yields 3 CO2 + 4 H2O deltaH = -2222 kJ

C3H8 yields 3 C + 4 H2 deltaH = ? kJ

(-1182) - [(-2222) + (-1144)]

(-2222) - [(-1182) + (-1144)]

(-1182) +(-1144) + (-2222)

(-2222) + (-1182) - (-1144)

Answer 1

What did you get?