iii-Use the equations below to calculate the enthalpy of formation for propane gas, C3H8,
from its elements, hydrogen gas and solid carbon
C3H5(9) + 5029) — 3C029) + 4H2O(1)
AH! = +2219.2 kJ/mol
C(s) + O2(g) → C029)
AH) = -393.5 kJ/mol
H2(g) + 029) + H2O(l)
AH = -285.8 kJ/mol