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Two kilograms of Refrigerant 134a, initially at 200 kPa and occupying a volume of 0.11874 m3, undergoes a process at constant pressure until the volume has doubled. Kinetic and potential energy effects are negligible.
Designate a control system/volume in the above sketch showing the various energies crossing the boundary. Draw a qualitative P-V diagram for the process. Write the energy balance equation and simplify to a form that is directly applicable to the problem.
Calculate the boundary work done during the process, in kJ.
Calculate the amount of heat transfer for the processes, in kJ.
refrigerant 134a at a pressure of 0.8 mpa and a temperature of 50 c undergoes a process until the pressure is 0.1 mpa
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