As shown in the figure, a piston-cylinder assembly with a stopper contains R-410A, a refrigerant at 2 MPa pressure, 140°C temperature and 0.5 m volume. Initially, the piston stops just below the stoppers. The total value of the pressure created by the mass of the piston and the atmospheric pressure is given as 480.4 kPa. R-410A is cooled to -20°C (253.15 K). In this framework, find the heat transfer [kJ]. Draw the P (kPa)-v (m³/kg) or T (°C)-v (m³/kg) diagram for the phase change.

As shown in the figure, a piston-cylinder assembly with a stopper contains R-410A, a refrigerant at 2 MPa pressure, 140°C temperature and 0.5 m volume. Initially, the piston stops just below the stoppers. The total value of the pressure created by the mass of the piston and the atmospheric pressure is given as 480.4 kPa. R-410A is cooled to -20°C (253.15 K). In this framework, find the heat transfer [kJ]. Draw the P (kPa)-v (m³/kg) or T (°C)-v (m³/kg) diagram for the phase change.

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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