A saturated liquid vapor H₂Omixture enters a 30-mm-inner-diameter tube at a temperature of 425 K with a quality of 0.97. The mixture is heated as it travels through the tube and exits at 520 K and 0.5MPa. The average velocity of the fluid exiting the tube is 20m/s. Show the entering and exit states on a T–v diagram. Before you perform any numerical calculations, consider whether you expect the velocity at the entrance to be greater than, less than, or the same as the exit velocity. Determine the average velocity of the liquid–vapor mixture at the tube entrance.