Methane and steam are added to a reactor at 1 bar and 300 oC where the following two reactions occur isothermally:
CH4 + H2O -> CO + 3H2 and then CO + H2O -> CO2 + H2
If the final mole fractions of CO2, CO, H2O and H2 are 0.0275, 0.1725, 0.1725 and 0.6275, respectively, how much heat is needed to add to the process?