Aswimmer extends his wet arms into the windy air outside at 1 atm, 5°c, 50 percent relative humidity, and 30 km/h. if the average skin temperature is 25°c, determine the rate at which water evaporates from both arms and the corresponding rate of heat transfer via evaporation. the arm can be modeled as a 0.6-m-long and 7.5-cm-diameter cylinder with adiabatic ends.

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.