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Assignment Problem 2.1: NH3 is being absorbed from an NH3 (A)-air (B) mixture in H2SO4. The concentration of NH3 in the air, 10 mm from the acid surface is 40% by volume and that at the acid surface is negligible. The total pressure in the system is 400 mm Hg and temperature is 27?C. Calculate (a) the rate of absorption of NH3 across 0.1 m² gas liquid contact area, (b) the partial pressure gradient of NH3 at 4 mm from the acid surface, (c) the rate of mass transfer of NH3 by molecular transport and that by bulk flow at the acid side end of the film, and (d) the rate of mass transfer of NH3 by molecular transport and that by bulk flow at the gas side end of the film. Given: (DAB×P)/T¹??=Constant; DAB of NH3 at 1 atm. and 60?C is 2.53×10?? m²/s.

          Assignment Problem 2.1: NH3 is being absorbed from an NH3 (A)-air (B) mixture in H2SO4. The concentration of NH3 in the air, 10 mm from the acid surface is 40% by volume and that at the acid surface is negligible. The total pressure in the system is 400 mm Hg and temperature is 27?C. Calculate (a) the rate of absorption of NH3 across 0.1 m² gas liquid contact area, (b) the partial pressure gradient of NH3 at 4 mm from the acid surface, (c) the rate of mass transfer of NH3 by molecular transport and that by bulk flow at the acid side end of the film, and (d) the rate of mass transfer of NH3 by molecular transport and that by bulk flow at the gas side end of the film. Given: (DAB×P)/T¹??=Constant; DAB of NH3 at 1 atm. and 60?C is 2.53×10?? m²/s.

Assignment Problem 2.1: NH3 is being absorbed from an NH3 (A)-air (B) mixture in H2SO4. The concentration of NH3 in the air, 10 mm from the acid surface is 40% by volume and that at the acid surface is negligible. The total pressure in the system is 400 mm Hg and temperature is 27?C. Calculate (a) the rate of absorption of NH3 across 0.1 m² gas liquid contact area, (b) the partial pressure gradient of NH3 at 4 mm from the acid surface, (c) the rate of mass transfer of NH3 by molecular transport and that by bulk flow at the acid side end of the film, and (d) the rate of mass transfer of NH3 by molecular transport and that by bulk flow at the gas side end of the film. Given: (DAB×P)/T¹??=Constant; DAB of NH3 at 1 atm. and 60?C is 2.53×10?? m²/s.

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