5) b) The equation for the combustion of ethanol in air is: C.HOH(U) +602(g) 4CO2(B) +5H0() and the full structural representation of this is: 1 1 1 H-C---C--H + 60=0+40=C=0+5H-0-- TIT H HHH i) Calculate the enthalpy change for this reaction using the average bond enthalpy values given below in table 3. (3) Table 3 Average bond enthalpy Bond Bond Average bond enthalpy kl mol") (kl mol) C-H +412 c-c +348 C-0 +360 O-H +463 O=0 +496 C=0 +743 1) Draw an enthalpy level diagram to represent this reaction. (2) Question 5 continues over the page