An engine has a hot reservoir that contains 20 MJ of heat energy at 400º c, and a cold reservoir that contains 15.0 MJ of heat energy at 5.00 c. What is the relative efficiency of this engine?

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ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
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Chapter15: Thermodynamics
Section: Chapter Questions
Problem 5PE: Suppose a woman does 500 J of work and 9500 J of heat transfer occurs into the environment in the...
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QUESTION 26
An engine has a hot reservoir that contains 20 MJ of heat
energy at 400° C, and a cold reservoir that contains 15.0
MJ of heat energy at 5.00 c. What is the relative efficiency
of this engine?
а. 42.6%
b. 33.7%
C. 63.5%
O d. 37.1%
е. 25.0%
Transcribed Image Text:QUESTION 26 An engine has a hot reservoir that contains 20 MJ of heat energy at 400° C, and a cold reservoir that contains 15.0 MJ of heat energy at 5.00 c. What is the relative efficiency of this engine? а. 42.6% b. 33.7% C. 63.5% O d. 37.1% е. 25.0%
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