Ammonia is absorbed in water from a mixture with air using a column operating at

atmospheric pressure and $295K.$ The resistance to transfer can be regarded as lying entirely in

a gas film $1mm$ thick. At a point in the column the partial pressure of the ammonia is $6\mathrm{.}6$

$k\frac{N}{m^2}.$

a$)$ What is the transfer rate per unit area at that point in the column?

b$)$If the gas was compressed to $200k\frac{N}{m^2}$ pressure, how would the transfer rate will be

altered? $(40p).$