Part B How much heat is exhausted per cycle if the engine's thermal efficiency is 20.0%? Give your answer in kJ. Express your answer in kilojoules. ▸ View Available Hint(s) 197 ΑΣΦ prome ?

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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Question
The power output of a car engine running at 3000 rpm is
400 kW.
Express your answer in kilojoules.
► View Available Hint(s)
8.00 kJ
Submit
Correct
MODEL: Assume that the car engine follows a closed cycle.
Previous Answers
SOLVE: Since 3000 rpm is 50.00 cycles per second, the work output of the car engine per cycle is
1
Wout (400) (5.0) eycles)
= 8.00
Part B
V
=
How much heat is exhausted per cycle if the engine's thermal efficiency is 20.0%? Give your answer in kJ.
Express your answer in kilojoules.
► View Available Hint(s)
ΑΣΦ
kJ
cycle
?
kJ
Transcribed Image Text:The power output of a car engine running at 3000 rpm is 400 kW. Express your answer in kilojoules. ► View Available Hint(s) 8.00 kJ Submit Correct MODEL: Assume that the car engine follows a closed cycle. Previous Answers SOLVE: Since 3000 rpm is 50.00 cycles per second, the work output of the car engine per cycle is 1 Wout (400) (5.0) eycles) = 8.00 Part B V = How much heat is exhausted per cycle if the engine's thermal efficiency is 20.0%? Give your answer in kJ. Express your answer in kilojoules. ► View Available Hint(s) ΑΣΦ kJ cycle ? kJ
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