//clc() m = 1;//kg of oil burned mc = 0.9;//kg mh2 = 0.1;//kg Mc = mc / 12;//kmol //C(s) + O2(g) = CO2(g) Nh2 = mh2 / 2.016;//kmol //change in the no. of gaseous components accompanying the combustion of 1 mole of hydrogen in liquid state is -1/2 mol, therefore for Nh2 mol R = 8.314; T = 298;//K x = Nh2 * R * T / (-2); Qv = -43000;//kJ/kg Qp = Qv + x; disp("kJ/kg",Qp,"the constant pressure heat of combustion = ")