HW03_solns[1]

HW03_solns[1] - School of Engineering Prof. Ed Cheng,...

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San Francisco State University ENGR 303: Engineering Thermodynamics School of Engineering Prof. Ed Cheng, Spring 2011 Homework 3 solutions NOTE : Solutions for HW problems that are based upon textbook problems reflect numerical values from the text. Numerical values may differ for these problems when they appear on iLearn. In such cases, the solution presented below provides the appropriate solution method . 3. The correct answer is (d). As discussed in lecture on 2/28/11, ׬ ܸܲ݀ (= area under curve on P-V diagram) is always the boundary work. However, there are specific forms of ׬ ܸܲ݀ that apply only in the cases described in (a)-(c). 1: 2:
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San Francisco State University ENGR 303: Engineering Thermodynamics
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Unformatted text preview: School of Engineering Prof. Ed Cheng, Spring 2011 HW 3 solutions 2 4: San Francisco State University ENGR 303: Engineering Thermodynamics School of Engineering Prof. Ed Cheng, Spring 2011 HW 3 solutions 3 Note that the solution above solves for work input and heat output. The iLearn questions asked for work output and heat input, so correct answers would be negative values. 5-6: San Francisco State University ENGR 303: Engineering Thermodynamics School of Engineering Prof. Ed Cheng, Spring 2011 HW 3 solutions 4 7: Note that problem as given on iLearn was in SI units, rather than English units. Also, the final pressure (rather than the final temperature) is given to fix the final state....
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HW03_solns[1] - School of Engineering Prof. Ed Cheng,...

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