2. Helium expands polytropically in a piston-cylinder from an initial pressure and volume of 3800 kPa and 0.75 m?, respectively. If the final pressure is 3680 kPa less than the initial pressure; n=1.3; R=2.077 kJ/kg-K; and k=1.66, determine: a. the non-flow work (kJ); and b. the change in specific entropy (kJ/kg-K).

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Chapter1: Units, Trigonometry. And Vectors
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2. Helium expands polytropically in a
piston-cylinder from an initial
pressure and volume of 3800 kPa
and 0.75 m, respectively. If the final
pressure is 3680 kPa less than the
initial pressure; n=1.3; R=2.077
kJ/kg-K; and k=1.66, determine:
a. the non-flow work (kJ); and
b. the change in specific
entropy (kJ/kg-K).
Transcribed Image Text:2. Helium expands polytropically in a piston-cylinder from an initial pressure and volume of 3800 kPa and 0.75 m, respectively. If the final pressure is 3680 kPa less than the initial pressure; n=1.3; R=2.077 kJ/kg-K; and k=1.66, determine: a. the non-flow work (kJ); and b. the change in specific entropy (kJ/kg-K).
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