Problem 3 A 45-liter steel tank initially contains a saturated liquid-vapor mixture of water with a quality of 60% at 800kPa. A pressure regulator maintains constant pressure inside the tank as it is heated by allowing saturated vapor to escape. The tank is heated until it contains a saturated liquid-vapor mixture consisting of 5% liquid. Determine: a) The amount of heat transfer, in kJ b) The mass of vapor that escapes, in kg