Consider the system sketched below in which a turbine is placed between two rigid tanks. Tank 1 initially contains an ideal gas at 10 bar and 1000 K. Its volume is 1 m3. Tank 2 is 9 m3 and is initially at vacuum. The heat transfer with the surroundings is negligible. Determine the maximum work (in [J]) obtainable by the turbine. You may take the heat capacity of the gas to be cP = (5/2)R. You may neglect the volume in the turbine and assume the fi nal temperature in the two tanks is equal.

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V = 1 m P = 10 bar T = 1000 K Rigid tank Ideal gas in W Turbine Ideal gas out V=9 m Initially vacuum Rigid tank