Steam is compressed isentropically to a final pressure of 5 MPa. The steam is initially at 25oC and has a quality of 91%. How much work does this process require, in kJ/kg, if the process takes place in... (a) A closed system? (b) An open system ? (c) Explain why the answers to parts (a) and (b) are not the same.
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http://www.LearnThermo.com/T1-tutorial/ch07/lesson-B/pg20.php#P7B16
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