2kg of an ideal gas for which Cp=0.895 KJ/kg-k and Cv =0.706 KJ/kg-k is contained in a rigid, insulated container at 2 bar, 400K. A stirrer driven by an external motor is operated within the vessel until the pressure becomes 4bar. Determine, the final temperature, change in internal energy (KJ), change in enthalpy (KJ), heat transfer (KJ), and work done by stirrer