Why isn’t there a change in temperature during a phase change? a. the energy is transferred to the surrounding air c. the temperature would increase b. the energy would be used by the increasing motion of molecules d. all of the above

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)