2. Calculate the enthalpy change of combustion for ethene gas (C2H4) given the

Question

following enthalpy changes of formation:
ΔHºf(C2H4)(g) = +52 kJ mol^-1
ΔHºf(CO2)(g) = -394 kJ mol^-1
ΔHºf(H2O)(g) = -286 kJ mol^-1

Answer 1

See your posts above.

Answer 2

Where is answer