10. What is the efficiency of an automobile engine that has a heat input of 67.2 kJ and a heat output of 36.1 kJ? 11. If the exhaust temperature of the engine in problem 10 is 285° C, then what is the intake temperature? (The exhaust and intake temperatures are the low and high operating temperatures of the engine, T₁ and TH)

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Chapter1: Units, Trigonometry. And Vectors
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10. What is the efficiency of an automobile engine that has a heat input of 67.2 kJ and a heat output
of 36.1 kJ?
11. If the exhaust temperature of the engine in problem 10 is 285° C, then what is the intake
temperature? (The exhaust and intake temperatures are the low and high operating
temperatures of the engine, T₁ and TH)
Transcribed Image Text:10. What is the efficiency of an automobile engine that has a heat input of 67.2 kJ and a heat output of 36.1 kJ? 11. If the exhaust temperature of the engine in problem 10 is 285° C, then what is the intake temperature? (The exhaust and intake temperatures are the low and high operating temperatures of the engine, T₁ and TH)
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