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Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded isothermally to 600 kPa, 0.2 m' then compressed Polytropically with an unknown Polytropic exponent to the initial pressure and double the initial volume (Vi), and finally expanded at a constant pressure to the initial state. Draw the PV diagram of the cycle and then determine: I. The boundary work of the entire cycle (W). Is this a practical cycle? II. Internal energy change (AU) during the polytropic process. III. Heat (Q) during the isobaric process.

Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded isothermally to 600 kPa, 0.2 m' then compressed Polytropically with an unknown Polytropic exponent to the initial pressure and double the initial volume (Vi), and finally expanded at a constant pressure to the initial state. Draw the PV diagram of the cycle and then determine: I. The boundary work of the entire cycle (W). Is this a practical cycle? II. Internal energy change (AU) during the polytropic process. III. Heat (Q) during the isobaric process.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded isothermally to 600 kPa, 0.2 m' then compressed Polytropically with an unknown Polytropic exponent to the initial pressure and double the initial volume (Vi), and finally expanded at a constant pressure to the initial state. Draw the PV diagram of the cycle and then determine: 1. The boundary work of the entire cycle (W). Is this a practical cycle? II. Internal energy change (AU) during the polytropic process. III. Heat (Q) during the isobaric process.
Transcribed Image Text:Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded isothermally to 600 kPa, 0.2 m' then compressed Polytropically with an unknown Polytropic exponent to the initial pressure and double the initial volume (Vi), and finally expanded at a constant pressure to the initial state. Draw the PV diagram of the cycle and then determine: 1. The boundary work of the entire cycle (W). Is this a practical cycle? II. Internal energy change (AU) during the polytropic process. III. Heat (Q) during the isobaric process.
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