A nonconducting tank of negligible heat capacity and 1 m³ volume is connected to a pipeline containing steam at 5 bar and 370^◦C, filled with steam to a pressure of 5 bar, and disconnected from the pipeline.

a. If the tank is initially evacuated, how much steam is in the tank at the end of the filling process, and what is its temperature? 

b. If the tank initially contains steam at 1 bar and 150°C, how much steam is in the tank at the end of the filling process, and what is its temperature?