37. IE An engineer redesigns a heat engine and improves its thermal efficiency from 20% to...
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37. IE •• An engineer redesigns a heat engine and improves its thermal efficiency from 20% to 25%.
(a) Must the ratio of the heat input to heat output (1) increase, (2)
remain the same, or (3) decrease? Explain.
(b) What is the engine’s change in Qh/Qc after the redesign is implemented?
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Related Book For 
College Physics Essentials Electricity And Magnetism Optics Modern Physics Volume Two
ISBN: 9781032337272
8th Edition
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
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