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D A session.masteringphysics.com Complete Java Masterclass use. Course Home MasteringPhysics: CH20 Hw1 Shopping Bag Display matrix of Os and 1s - Mark Sheldon at Tufts Univer. Chegg Study Guided Solutio. CH20 HW1 Exercise 20. 1 Resources a previous 1 of 3 | next Exercise 20.1 Part A How much heat must be supplied to the engine in each cycle? A diesel engine performs an amount of mechanical work equal to 2300 J and discards an amount of heat equal to 4100 J each cycle. IDVD Aze a Sr C ? Submit up My Answers Give Ue Part B What is the thermal efficiency of the engine? DVD AZA Sr CO 2 ? Submit My Answers Give Up Provide Feedback Continue

Explanation / Answer

Here,

work done = 2300 J

heat lost = 4100 J

a) heat supplied to the engine = work done + heat lost

heat supplied to the engine = 2300+ 4100

heat supplied to the engine = 6400 J

part B)

thermal efficiency of the engine = work done /heat supplied

thermal efficiency of the engine = 2300 /6400

thermal efficiency of the engine = 0.36

the thermal efficiency of the engine is 0.36  

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