Ammonia gas is being absorbed by water in a wetted-wall column. At one level of the column, the following data applies:
gas-phase mass transfer coefficient: 5.22 x 10-9 kmol m-2 s-1 Pa-1
liquid-phase mass transfer coefficient: 3.88 x10-5 m s-1
Henry's constant: 0.955 kPa (kmol m-3)-1
mole fraction of ammonia in liquid: 1.351 x 10-3
mole fraction of ammonia in gas: 0.065
total pressure of system: 1.013 bar
mole mass of ammonia: 17
Find:
- the mass transfer flux in column
- the partial pressure of the ammonia gas at the gas/liquid interface
- the molar concentration of the ammonia in the liquid at the interface