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Thermo I Exam 3 Example 1 with answers

Thermo I Exam 3 Example 1 with answers - Name CHEG 2313...

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Name: ____________________________ CHEG 2313 Thermo I Exam II Fall 2010 Short answer: 1. Determine the derivative of the following using the chain rule of differentiation: A(V,S,N) (6 pts) 2. Write out the triple product rule for the following: H S V (6 pts) 3. For each of the following, use the chain rule to introduce pressure into the following relationship: V S U (6 pts) 4. Use the expansion rule to introduce the thermodynamic variable temperature at constant pressure to V d V U S d S U U d S V + = . (6 pts) 5. Label the graphs below with one of the following: air-standard Otto, Otto, Rankine, Carnot. (4 pts) a) b) c) d) 6. Which of the following is not an idealization of the air-standard Otto cycle? (2 pts) (a) The working fluid is an ideal gas with constant heat capacity (b) Each step is considered to be reversible (c) Only the operating temperatures control the efficiency (d) There is no source or delivery mechanism for the heat of combustion 1
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Name: ____________________________
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