Consider the process below: Water In Steam Combustor Gas Out Gas In Generator Combustor exit Steam Out A methane (CH.) and air mixture is burnt in the combustor then the heat is recovered to produce steam. The CHa/air mixture comes in at 25 C and contains 10 kg/h of CH4 and 500 kg/h of air (assume 79 % Nitrogen (N2) and 21% Oxygen (O:)). The final outlet gas leaves at 100 C. The combustion reaction follows the following chemical reaction: CH4 + 202 - CO2 + 2H20 The heat of reaction is -802000 J/mol of CHa reacted at 25 C. The water enters the steam generator at 20 C and leaves at 400 C. Other useful information: Molecular masses (g/mol): N2 = 28, O2 = 32, CH4 = 16, H20 = 18, co2 = 44 %3D Specific heats (J/kgK): N2 = 1040, O2 = 935, CHa = 2440, CO2 = 920, H20 = 1890 (gas) = 4200 (liquid) Heat of vaporisation (J/kg) = 2257000 Use a reference temperature of 25 C. 1. Complete the table below for the gas in stream. Compound Mass flow (kg/h) Mole flow (kmol/h) N2 02 CH4 Total 2. What is the average specific heat for the gas in stream? 3. What is the enthalpy for the gas in stream? 4. What is the limiting reagent? 5. Complete the table below for the stream out of the combustor. Compound Mass flow (kg/h) Mole flow (kmol/h) N2 02 CH4 H20 CO2 Total 6. What is the enthalpy of reaction? 7. What is the total enthalpy of the stream leaving the combustor? 8. What is the specific heat (C,) of the stream leaving the combustor? 9. What is the temperature of the stream leaving the combustor? 10. What is the enthalpy of the final gas outlet a 100 C? 11. What is the change in the energy of the gases across the steam generator, include whether it was cooled or heated? 12. How much energy is required to raise 1 kg/h of water at 20 C to steam at 400 C? 13. How many kg/h of steam at 400 C can this process generate?