Air flows over a solid slab of frozen carbon dioxide (dry ice) with an exposed cross-sectional Surface area of 10^-3 m2. The carbon dioxide sublimes into the 2 m/s flowing stream at a total release rate of 2.2910^-4 mol/s. The air is at 293 K and 101300 Pa pressure. At that temperature, the diffusivity of carbon dioxide in air is 1.5 10^-5 m2/s and the kinematic viscosity of the air is 1.5510^-5 m2/s. Determine the value of the mass-transfer coefficient of CO2 subliming into the flowing air under the conditions of the experiment.