Which statement best describes the energy changes associated with evaporation and boiling? A. atoms gain energy during evaporation and boiling
B. Atoms lose energy during evaporation and boiling
C. Atoms gains energy during evaporation but lose energy during boiling
D. Atoms lose energy during evaporation but gain energy during boiling

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)