Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m 3 . The diffusivity of aniline in air is 0.74xl0 -5 m 2 /s.The numerical value of mass transfer co-efficient is 7.4 x 10 -3 . The rate of evaporation of aniline is 2.97 x 10 -4 . Its units are
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MT 1 : Stoichiometry in Chemical Engineering
25 Qs . 25 Marks . 15 Mins
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