In this lesson, we will learn how to compare the work done by heat engines with different reservoir temperature ratios and how to calculate their efficiencies.
Students will be able to
Q1:
What is the efficiency of a heat engine that has constant reservoir temperatures of 200βC and 100βC? Give your answer to three decimal places.
Q2:
The graph shows the relationship between the loss of the internal energy of the high-temperature reservoir of a heat engine πin and the gain in internal energy of the heat engineβs low-temperature reservoir πout for different values of ππinout, the ratio of the temperatures of the reservoirs. Which is the greatest temperature ratio?
Q3:
A heat engine is represented in the diagram, showing the quantities associated with its operation. Which of the following formulas most correctly represents the relationship between πin, πout, and π?
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