ef152-rec-6-2 - EF 152 Physics for Engineers Spring, 2009...

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EF 152 – Physics for Engineers Spring, 2009 Recitation 6.2 2 nd Law of Thermodynamics Task 1. Finish these few concept questions, and you will be done with concept questions for EF 152, Engineering Fundamentals, your engineering career, and maybe even your entire life. 1. The heat engine shown in Figure 1 is: a. a reversible (Carnot) heat engine b. an irreversible heat engine c. a hoax d. none of the above 2. The heat engine shown in Figure 2 is: a. a reversible (Carnot) heat engine b. an irreversible heat engine c. a hoax d. none of the above What should be the value of Q C to make this a Carnot engine? Task 2: Finish analyzing heat engine. Use your data from Recitation 5-4. Work done by the engine (from Recitation 5-4): _____________ J Heat is added in two steps in the heat engine. The first is Step 2, in the isobaric expansion when the air chamber is placed in the hot reservoir. The second is in step 3, when the weight is taken off the piston. We will consider this to be an isothermal process. Each of the heats will be calculated.
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This note was uploaded on 04/07/2009 for the course EF 152 taught by Professor Ab during the Spring '08 term at University of Tennessee.

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ef152-rec-6-2 - EF 152 Physics for Engineers Spring, 2009...

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