Ammonia gas is being absorbed by water in a wetted-wall column. At one level of the column, the following data applies:

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 × 10–9 kmol m–2 s–1 Pa–1
liquid-phase mass transfer coefficient 3.88 × 10–5 m s–1
Henry's constant 0.955 kPa (kmol m–3)–1. mole fraction of ammonia in liquid* 1.351 × 10–3 mole fraction of ammonia in gas* 0.065
total pressure of system 1.013 bar
mole mass of ammonia 17
*Note: these values will need to be converted to concentrations in kmol m–3.

(a) What is the partial pressure of the ammonia gas at the gas/liquid interface?

(b) What is the molar concentration of the ammonia in the liquid at the interface?

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Expert Solution

Amanda K answered 1 year ago

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