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This problem is about mass balances in an absorption column. Consider an absorption column operating at 1.9 [atm] and 30 [C] that is used to

This problem is about mass balances in an absorption column. Consider an absorption column operating at 1.9 [atm] and 30 [C] that is used to treat 1500 [L/min] of a gaseous mixture with 23% NH (mole basis) and the balance being air. Water with traces of ammonia (0.5% NH by mole) is used for this purpose. The gas leaving the column contains 1.3% NH while the leaving liquid will have 14% NH (mole basis). Molar masses are: 0.017 [kg/mol] for ammonia; 0.018 [kg/mol] for water; and 0.029 [kg/mol] for air. Gas constant is R = 8.31446 [J/molK] (1 [J] = 1 [Pam]).

Requirements: Based on the information provided above, please find:

(1) The following for the entering gaseous stream (3 points each): Molar flow rate of the whole stream: Answer [mol/s] Molar flow rate of ammonia in this stream: Answer [mol/s] Molar flow rate of air in this stream: Answer [mol/s] Ammonia-to-air mole ratio in this stream: Answer []

(2) The following for the outgoing (exit) gaseous stream (4 points each): Mole fraction of air in this stream: Answer [] Molar flow rate of the whole stream: Answer [mol/s] Ammonia-to-air mole ratio in this stream: Answer []

(3) The ammonia-to-water mole ratio for the following liquid streams (4 points each): The entering liquid stream: Answer [] The outgoing (exit) liquid stream: Answer []

(4) The water flow rate (ammonia-free basis) in the liquid streams (3 points each): In the entering liquid stream: Answer [mol/s] In the outgoing (exit) liquid stream: Answer [mol/s]

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