interface Problem $1$

The gas $A$ is being absorbed in a absorption tower. At a certain point in the tower the bulk gas concentration is $YA=0\mathrm{.}6$ mole fraction and $x=0\mathrm{.}08$ mole fraction. From the correlations for towers and for dilute solutions, the film mass transfer coefficient for gas A are $k^{\text{'}}x=1\mathrm{.}2mo\frac{l}{h}r.c{m}^2$ and $k^{\text{'}}y=1\mathrm{.}6mo\frac{l}{h}r.c{m}^2,$ and the overall mass transfer coefficient are $K_y^{\text{'}}=0\mathrm{.}35mo\frac{l}{h}r.c{m}^2$ and $K_x^{\text{'}}=1\mathrm{.}037mo\frac{l}{h}r.c{m}^2$

If the interface point $(x_{Ai},y_{Ai})=(0\mathrm{.}257,0\mathrm{.}468),$ calculate flux NA for equimolar case

a$)0\mathrm{.}2112mo\frac{l}{c}{m}^2*hr$

b$)0\mathrm{.}3112mo\frac{l}{c}{m}^2*hr$

c$)0\mathrm{.}4112mo\frac{l}{c}{m}^2*hr$

d$)0\mathrm{.}5112mo\frac{l}{c}{m}^2*hr$

If the interface point $(x_{Ai},y_{Ai})=(0\mathrm{.}273,0\mathrm{.}52),$ calculate flux NA for stagnant case

a$)0\mathrm{.}29mo\frac{l}{c}{m}^2*hr$

b$)0\mathrm{.}39mo\frac{l}{c}{m}^2*hr$

c$)0\mathrm{.}49mo\frac{l}{c}{m}^2.hr$

d$)0\mathrm{.}59mo\frac{l}{c}{m}^2*hr$