Answer to Question #302559 in Chemical Engineering for SAVARA RAVITEJA

Question

Ammonia is diffusing through a non-diffusing gas mixture of methane and hydrogen in

volume ratio 2:1 under steady state condition. The total pressure is 1 atm. and the temperature

is 100C. The partial pressure of ammonia at two planes 2 mm apart is 13000 and 6500 N/m2

,

respectively. Calculate the flux of ammonia through the layer. Estimate also the quantity of

ammonia diffusing in kg/ day, if the area of cross section of stagnant gas film is 2 m2

.

NH 3 H 2

D  = 7.0 x 10-5 m

2

/ s at 303 K and 1 atm.

NH 3 CH 4

D  = 2.0 x 10-5 m

2

/ s at 288 K and 1.5 atm. (

Answer 1

Answer is given below