Question: Evaporation rate for the system shown in Fig. 18.2-1, what is the evaporation rate in g/hr of CC1 3 NO 2 (chloropicrin) into air at

Evaporation rate for the system shown in Fig. 18.2-1, what is the evaporation rate in g/hr of CC1₃NO₂ (chloropicrin) into air at 25°C Make the customary assumption that air is a "pure substance."

Total pressure Diffusivity (CCl,NO,-air) Vapor pressure of CCl,NO, Distance from liquid level to top of tube Density of

Total pressure Diffusivity (CCl,NO,-air) Vapor pressure of CCl,NO, Distance from liquid level to top of tube Density of CCl,NO, Surface area of liquid exposed for evaporation 770 mm Hg 0.088 cm/s 23.81 mm Hg 11.14 cm 1.65 g/cm 2.29 cm? -R = 1.4 cm Water film runs down the wall - Film thickness 8 L = 13 cm - Surface concentration assumed equal to the saturation concentration Chlorine-bearing gas

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