A reciprocating, spark ignition, engine takes in an air-fuel mixture at 20°C. It has a compression ratio of 10. The air-to-fuel ratio is 12, and the heating value of the fuel is 60,000 kJ/kg. For an air standard cycle analysis, what is the largest pressure reached? You may assume Cv is approximately 0.7 kJ/kg K and Cp/Cv approximately 1.4.

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A reciprocating, spark ignition, engine takes in an air-fuel mixture at 20°C. It has a compression ratio of 10. The air-to-fuel ratio is 12, and the heating value of the fuel is 60,000 kJ/kg. For an air standard cycle analysis, what is the largest pressure reached? You may assume C<sub>v</sub> is approximately 0.7 kJ/kg K and C<sub>p</sub>/C<sub>v</sub> approximately 1.4.