Determine the interfacial concentrations

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Reference no: EM131310673

A mass-transfer process is used to remove ammonia, NH₃, solute A, from a mixture of NH₃ and air, using water as the solvent. The partial pressure of ammonia in the bulk gas phase is 0.2 atm, and the mole fraction of dissolved ammonia in the water is 0.04. The total system pressure is 2.0 atm, and the temperature is 30°C. The equilibrium distribution at 30°C is shown in the figure:

1438_Figure 02.jpg

At 30°C, the molar solution density is 55:6 kg mol/m³. The film mass-transfer coefficient are k_G = 1:0 kg mol/m² s atm and k_L = 0:045 m/s.

a. Evaluate k_x.

b. Determine the interfacial concentrations, c_Ai and p_Ai, What are x_Ai and y_Ai?

c. Evaluate the overall mass-transfer coefficient, K_G.

d. What is the flux, N_A, for this process?

Reference no: EM131310673

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