A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates at 0oC into still air at 101 kPa. All of the mass-transfer resistance is in the still air layer in the beaker. If each component evaporates independently determine the liquid composition when half the ethyl alcohol has evaporated. You can assume well-mixed liquid, ne negligible bulk flow effect, and Raoult’s law. The following data are available: Vapor pressure (kPa) at 0oC Diffusivity in air (m2/s) Ethyl acetate (AC) 3.23 6.45 X 10^-6 Ethyl alcohol (AL) 1.62 9.29×10^-6.