Question

In the absorption of component A (molecular weight = 60 g/mol) from an airstream into an aqueous solution, the bulk compositions of the two adjacent streams at a point in the apparatus were analyzed to be P_A,G = 0.1 atm and C_A,L = 1 kmol of A/m³ . The Henry’s Law constant was 0.85 ATM/mole fraction. The overall gas coefficient was K_G = 0.27 kmol/m2/h/ATM. If 60% of the total resistance to mass transfer resides in the gas film, determine:

a. The gas-film coefficient, k_G.

b. The liquid-film coefficient, k_L.

c. The concentration on the liquid side of the interface x_A,i.

d. The mass flux of A.

Answer 1