air containing 5% ammonia NH3 passes in a packed absorber countercurrent to the water. 25m3/min of gas and 28.6kg/min of

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air containing 5% ammonia NH3 passes in a packed absorber
countercurrent to the water. 25m3/min of gas and 28.6kg/min of
water enter the tower. the tower works at 285 °k and 1.012x10^5 pa.
for dilute concentrations at 295 °k the equilibrium concentrations
are related by y/x=1.08. If the outlet gas only contains 0.5% NH3,
determine:
a) the ratio (Ls/Gs)real/(Ls/Gs)minimum
b) the concentration of the outlet liquid stream
make the analysis of the tower in a drawing