Consider a cylinder (of height 10m) full of water exposed to air. average velocity of air: 3 m/s density of air: 1.3 kg/m3 viscosity of air: 2 x 10-5 kg/m-s diffusivity of water vapor in air: 8 x 10-6 m2/s diameter of cylinder: 1 m temperature: 298 k saturated vapor pressure of water at 298 k: 23 mm hg relative humidity of ambient air: 50% assume mass transfer correlation for flat plate boundary layer theory nsh = 0.664 (nre)0.5 (nsc)0.33 i. what is the rate of water vapor evaporation in g/min? ii. will this flux be constant or will it change? if so, write the equation for the flux as a function of time.