Question

Suppose there is a gas stream in contact with a shallow stagnant liquid in a container. Component A is soluble in the liquid, so it is diffusing from the gas stream at point 1 into the liquid. The mole fraction of A on the liquid side of the interface between the gas and liquid is known, and it is equal to x_A1.The bottom surface of the container (at point 2) is completely covered with a solid catalyst, wherein the following instantaneous and irreversible reaction takes place:

A → B+C

Components B and C diffuse back into the liquid. Starting from the general flux relationship for component A, derive the final equation for N_A at steady state at constant T and P.

Answer 1

The solution steps are shown below: