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For a specified compression ratio, is a diesel or gasoline engine more efficient?
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It is an important factor in determining the efficiency of an engine. Show more…
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You're considering buying a car that comes in either gasoline or diesel versions. The gas engine has compression ratio $r=8.3$ while the diesel has compression ratio $r=19$ and cutoff ratio $\alpha=2.4 .$ Use the results of Problems 55 and 57 to determine which engine is more efficient. Both engines "breathe" air, which is diatomic.
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