Calculate the standard enthalpy change for the following rxn.
CH4 + 2O2(g) ? CO2(g) + 2H2O(l)
?Hf CO2 = -394 KJ/mol
?Hf H2O = -286KJ/mol
?Hf CH4 = -75 KJ/mol
Using the standard enthalpy of formation of methane and the data given below calculate the mean bond enthalpy of C-H bond in methane.
C(s) ? C(g) ?Hat of graphite = +715 KJ/mol
H2(g) ? 2H(g) ?H= +436 KJ/mol
Using the C-H bond enthalpy calculated and the standard enthalpy change for the reaction given below, calculate the mean bond enthalpy of the C-C bond in propane
C3H8 (g) ? 3C(g) + 8H(g)
