Question
If an engine does $200 \mathrm{~J}$ of net work and exhausts $800 \mathrm{~J}$ of heat per cycle, what is its thermal efficiency?
Step 1
This is given by the sum of the work done by the engine and the heat exhausted. So, we have: \[Q_H = W + Q_C\] where \(Q_H\) is the total heat absorbed, \(W\) is the work done and \(Q_C\) is the heat exhausted. Show more…
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THE LAWS OF THERMODYNAMICS
Heat Engines
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