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.](https://lightcat-files.s3.amazonaws.com/problem_images/2fb58f8567302c6c-1681766277570.jpg)
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