We wish to obtain a supply of cold helium gas by applying the following technique. Helium (assume ideal gas with constant specific heats MW=4.003, C-sub-p0=5.1926 kJ/kgK, C-sub-v0=3.1156 kJ/kgK) is contained in a cylinder at ambient conditions, 100 kPa and 20 degrees C, is compressed in a reversible isothermal process to 600 kPa, after which the gas is expanded back to 100 kPa in a reversible adiabatic process. a) Show the process on a T-s diagram b) Calculate the final temperature in K c) calc the net specific work done by the helium in Kj/kg.