A gas stream contains 4.0 % NH3 and its ammonia content is reduced to 0.5 mol % in a packed absorption tower at 293 K and 1 atm. The inlet pure water flow is 68.0 kg mol /h and the total inlet gas flow is 57.8 kg mol/h. The tower diameter is 0.747 m. The film mass transfer coefficients are kya =0.0739 kg mol/(m3 .s.mol frac) and kxa=0.169 kg mol/(m3 .s.mol frac.). Using the design methods for dilute gas mixtures, calculate the tower height using kya.

A gas stream contains 4.0%NH3 and its ammonia content is reduced to 0.5mol% in a packed absorption tower at 293K and 1atm. The inlet pure water flow is 68.0kgmol /h and the total inlet gas flow is 57.8kgmol/h. The tower diameter is 0.747m. The film mass transfer coefficients are ky 'a =0.0739kgmol/(m3.s.molfrac) and kxa=0.169kg mol/m3.s.mol frac.). Using the design methods for dilute gas mixtures, calculate the tower height using kya