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Example 3: Filling a rigid cylinder mout=0;W=0;E^ex=0Q=0 A compressed-air tank is to be repressurized to 40 bar by connecting it to a high-pressure line containing air at 50 bar and 20C. The repressurization of the tank occurs so quickly that the process can be assumed to be adiabatic; also there is no heat transfer from the air to the tank. If the tank initially contains air at 1bar and 20C, what will be the temperature of the air in the tank at the end of the filling process? Assume air to be an ideal gas with Cv=21J/molK. Molar mass of air is 29g/mol