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Back to 15.3 Introduction to the Second Law of Thermodynamics: Heat Engines and Their Efficiency

15.3 Exercise 9

Avg difficulty 2.5

The engine of a large ship does 2.00×108 J2 . \text{00} \times \text{10}^{8} \text{ J} of work with an efficiency of 5.00%. (a) How much heat transfer occurs to the environment? (b) How many barrels of fuel are consumed, if each barrel produces 6.00×109 J6 . \text{00} \times \text{10}^{9} \text{ J} of heat transfer when burned?

OpenStax College Physics 2e, 15.3 Introduction to the Second Law of Thermodynamics: Heat Engines and Their Efficiency, exercise 9

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.