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Heat Engines & PV Diagrams
23. The Second Law of Thermodynamics / Heat Engines & PV Diagrams / Problem 5

A mechanical engineer designed a thermal engine that operates using the cycle shown in the figure below. Determine i) the heat extracted (QH) from the heat source ii) and the thermal efficiency (η)
PV diagram showing a thermal engine cycle with energy values: 120 J and 20 J.

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