Model the combustion process in a spark-ignition engine as an open system process. An Otto cycle with a compression ratio of 9 produces 75 kW of power. Model the Otto cycle as using an ideal gas with constant specific heats. The heat is provided by the combustion of octane with air at an equivalence ratio of 1. The air and fuel begin the combustion process at a temperature of 700 K, and the products exit the combustion process at 1400 K. Determine the mass flow rate of octane needed to produce the necessary heat in this combustion process.
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