1) A wind (atmospheric air) at 5 m/s flows parallel to the surface of a container containing ethyl ether, (C 2 H 5) 20 at 293 K and 1 atm. The boundary layer solution for a flat plate provides the following equations: For laminar flow: 0,332(Re,)(sc) For turbulent flow: 0,0292(Rex)}(SC) kex = DAB kex = DAB with the transition occurring at Rey= 2x105. Determine the average value of k for the surface between 0.5 and 0.8 m