Q1: Ammonia is absorbed in water from a mixture with air using a column operating at atmospheric pressure and 295 K. The resistance to transfer can be regarded as lying entirely within the gas phase. At a point in the column, the partial pressure of the ammonia is 6.6 kN/m The back pressure at the water interface is negligible, and the resistance to transfer may be regarded as lying in a stationary gas film 1 mm thick. If the diffusivity of ammonia in air is 0.236 cm2 /s, what is the transfer rate per unit area at that point in the column?

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q1: Ammonia is absorbed in water from a mixture with air using a column operating
at atmospheric pressure and 295 K. The resistance to transfer can be regarded as lying
entirely within the gas phase. At a point in the column, the partial pressure of the
ammonia is 6.6 kN/m The back pressure at the water interface is negligible, and the
resistance to transfer may be regarded as lying in a stationary gas film 1 mm thick. If
the diffusivity of ammonia in air is 0.236 cm2 /s, what is the transfer rate per unit
area at that point in the column?
Transcribed Image Text:Q1: Ammonia is absorbed in water from a mixture with air using a column operating at atmospheric pressure and 295 K. The resistance to transfer can be regarded as lying entirely within the gas phase. At a point in the column, the partial pressure of the ammonia is 6.6 kN/m The back pressure at the water interface is negligible, and the resistance to transfer may be regarded as lying in a stationary gas film 1 mm thick. If the diffusivity of ammonia in air is 0.236 cm2 /s, what is the transfer rate per unit area at that point in the column?
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