[12] 12. 48 m/s of superheated vapor water at 350C, 1200 kPa, is flowing through an 80 cm diameter pipe, [13] (a) Determine the mass flow rate (in kg/s) of this steam (superheated water vapor). [14] (b) Calculate the velocity (in m/s) of the steam (superheated water vapor). 13, 40 kg of saturated liquid water at 150C is expanded until the pressure is 120 kPa in a process where