Calculate the enthalpy of formation of ΔHf for C2H5OH from tabulated data and its heat of combustion as represented by the following equations:
H2(g)+1/2O2(g)⟶H2O(g);ΔHo=−241.8kJmol−1...(i)
C(s)+O2(g)⟶CO2(g);ΔHo=−393.5kJmol−1...(ii)
C2H5OH(l)+3O2(g)⟶3H2O(g)+2CO2(g);ΔHo=−1234.7kJ...(iii)