Air flows over a solids lab of frozen carbon dioxide (dry ice) with an exposed cross-sectional surface area of 0.001m2. the carbon dioxide sublimes into the 2m/s flowing stream at a total release rate of 2.29x10−4mol/s. the air is at 293k and 1.013x105pa pressure. at that temperature, the diffusivity of carbon dioxide in air is 1.5x10−5 m2/s and the kinematic viscosity of the air is 1.55x10−5 m2/s. determine the value of the mass-transfer coefficient of co2 subliming into the flowing air under the conditions of the experiment.
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