A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries steam at 4MPa. Now the valve is opened, and steam is allowed to flow into the tank until the pressure reaches 4MPa, at which point the valve is closed. If the final temperature of the steam in the tank is 600C, determine the temperature of the steam in the supply line and the flow work per unit mass of the steam. Use data from the steam tables. The temperature of the steam is C. The flow work per unit mass is x kJ/kg