Propane at 298K, 1atm enters a combustion chamber operating at steady-state, with a molar flow rate of 0.7 kmol/s and burns completely with 200% theoretical air at 298K, 1atm with no heat transfer. Due to metallurgic constrains the next stage of the process require to use, maximum, a temperature of 70% of the combustion temperature. To lower the temperature, the exhaust products are flowed through a heat exchanger, where they give energy to some water mass flow entering at 20°C, 500 kPa and exiting at 700°C, 500 kPa and then out of the exhaust. How much energy can per kmol fuel can the products deliver and how many kilograms of water per kilogram of fuel can they heat? Hf, 20°C, 500kPa = 84.388 kJ/kgwater, hf,700°C, 500 kPa = 3927.046 kJ/kgwater