A small droplet of liquid detergent, falling through air in a spray drying tower, has its diameter reduced as water evaporates from the surface. If it is assumed that the temperature of the liquid within the drop remains at 290 K and the dry air is at 310 K, determine the concentration of water vapor in the surrounding bulk air stream within the drying tower. The total system pressure is 1.0 atm, and the film average gas temperature is 300 K. Potentially useful data: kinematic viscosity of air at 300 K, (Welty, 2013-12-09) Welty, J., Rorrer, G. L., Foster, D. G. (2013-12-09). Fundamentals of Momentum, Heat and Mass Transfer, 6th Edition [VitalSource Bookshelf version]. Retrieved from vbk://9781118804278 Always check citation for accuracy before use.