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Engineering · Mechanical Engineering
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0.75 kg of R134a having an initial quality of 0.1 and pressure of 2.0 bar resides in a piston- cylinder device. The R134a surrounds an electrical heating element. A current of 17 A 24 VDC flows through the element such that the final R134a quality is 0.9 What is the R134a reversible heat transfer? Report your answer in kJK. Calculate lathe time for current flow. Report your answer in min. Would the time for current flow more or less if the heat transfer were irreversible? Justify your answer using basic equation(s)

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