The volume of 1.5 kg of helium in a piston-cylinder device is initially 9 m3. Now the helium is compressed to 5 m3 while its pressure is maintained constant at 160 kPa and allowing the transfer of heat between the helium and environment
(a) Determine the initial and final temperatures of the helium, as well as, the work required to compress it, in kJ.
(b) Present the process in a P-V diagram.
(c) Calculate the heat transfer during this process.