Q) A piston-cylinder device initially contains 0.5 kg of air at 1 MPa and 400°C. The als first compressed Polytropically with a Polytropic exponent of (K = 1.4) to 4 MPa, then expanded isothermally to the initial pressure, and finally compressed at the 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). II. Internal energy change (AU) during the polytropic expansion. III. Heat released (Q) during the isobaric process.

Q) A piston-cylinder device initially contains 0.5 kg of air at 1 MPa and 400°C. The als first compressed Polytropically with a Polytropic exponent of (K = 1.4) to 4 MPa, then expanded isothermally to the initial pressure, and finally compressed at the 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). II. Internal energy change (AU) during the polytropic expansion. III. Heat released (Q) during the isobaric process.

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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