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We are trying to design a fuel cell system for a 100 kW automobile. It is said that the cathode stoichiometric ratio is 2 and the hydrogen cathode stoichiometric ratio is 1.5 and is operated with a cell voltage of 0.67 V. find each of the following (However, the mole fraction of oxygen in the air should be 0.21) 1) Air consumption (kg/s) 2) Outlet air flow (kg/s) (there is water vapor in the outlet air, but consider only dry air) 3) Mass of water produced in 1 hour (kg) 4) Heat generated (W) (Hint: Proceed by displaying the electrical output)

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