calculating enthalpy change of formation
Calculate the enthalpy of formation for chloromethane (C₂H₅Cl(g))
ΔHf = -109 (C₂H₅Cl (g)) ΔHf = -92 (HCl (g)) ΔHf = 52 (C₂H₄ (g))
C₂H₄(g) + HCl (g) => C2H5Cl (g)