Question: 18. The power stroke in an internal combustion engine can be approximated with a polytropic expansion. Consider air in a cylinder vohume of 0.2

18. The power stroke in an internal combustion engine can be approximated

18. The power stroke in an internal combustion engine can be approximated with a polytropic expansion. Consider air in a cylinder vohume of 0.2 liters at 7 Mpa, 1800K It now expands in a reversible polytropic process with, n=1.5 through a volume ratio of 8:1. Calculate the work and heat transfer for the process.

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