Hydrogen is produced in the steam reforming of ethane: C2H6(g)+2H2O(v)2CO+5H2O The water-gas shift reaction also takes place in the reactor, leading to the formation of additional hydrogen: CO(g)+H2O(v)CO2(g)+H2(g) The reaction is carried out over a nickel catalyst in the tubes of a shell-and-tube reactor. The feed to the reactor contains steam and ethane in a 6:1 molar ratio at 125C, and the products emerge at 800C. The excess steam in the feed assures essentially complete consumption of the ethane. Heat is added to the reaction mixture by passing a hot gas over the outside of the tubes that contain the catalyst. The gas is fed at 4.0m3/molC2H6, entering the unit at 1400C and 1atm and leaving at 900C. The unit may be considered adiabatic. (a) Calculate the molar composition of the product gas, assuming that the heat capacity of the heating gas is 0.40kj/(mol.C). (b) Is the reaction process exothermic or endothermic? Explain how you know