An insulated cylinder of fixed volume of 4 meter cube contains 20 kg of nitrogen. Paddle work is done on the gas by stirring it until the pressure in the vessel gets increased from 4 bars to 8 bars. With constant nitrogen properties: Cp = 1.04 kj/kg.K and R = .297 kJ/kg.K
a) Find the heat transfer and work done in kJ for this Process
b) Calculate the change in entropy of the system during the process in kJ/K
c) Sketch p-V and T-S diagrams for the process