01: A piston-cylinder system contains 0.25 m3 of water at 2.1 MPa and 100°C. It is heated at constant pressure till the mixture became 15% liquid and 85% vapor by volume. The steam then expanded to 7.2 bar according to the law PV03=C. Determine: 1.Formulate the problem and identify the given and needed information for all variables. 2Sketch P-V and T-V diagrams and state all points. 3 Identify the condition of steam at the initial point and find (v, u, h). 4. Find the work done and heat for the constant pressure heating. 5 Find the work done and heat for the polytropic expansion. 6 Show if there is an alternative solution for any of the above requirements (optional Extra Points).

01: A piston-cylinder system contains 0.25 m3 of water at 2.1 MPa and 100°C. It is heated at constant pressure till the mixture became 15% liquid and 85% vapor by volume. The steam then expanded to 7.2 bar according to the law PV03=C. Determine: 1.Formulate the problem and identify the given and needed information for all variables. 2Sketch P-V and T-V diagrams and state all points. 3 Identify the condition of steam at the initial point and find (v, u, h). 4. Find the work done and heat for the constant pressure heating. 5 Find the work done and heat for the polytropic expansion. 6 Show if there is an alternative solution for any of the above requirements (optional Extra Points).

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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