The enthalpies of combustion, ahe, for methanol (ch3oh), methanal (ch2o) and carbon monoxide (co) are given below: ch3oh ch20 co ahc638.6 kj mol-1 ahc-570.8 kj mol1 ahc 283.2 kj mol 1 calculate the enthalpy change for reaction q2.a. reaction q2.a (6 marks) the born-haber process, reaction q2.b has an enthalpy change of n2 +3h22nh3 reaction q2.b (c) 92.4 kj mol-1 at standard conditions of 298 k and 105 pa. assuming that the gases behave as ideal gases throughout and the pressure remains constant, calculate the enthalpy change of the reaction at the typical operating conditions of 670 k.