Question
25.2 Consider a system for mass transfer of a binary mixture of species A and B within the control volume shown in the figure below.
25.2 Consider a system for mass transfer of a binary mixture of species
A
and
B
within the control volume shown in the figure below. The concentration at the surface
(c_(As))
is constant, the process is very dilute with respect to species
A
within the control volume, the control volume fluid is still (not well mixed), and there no homogeneous reaction of species
A
in the control volume. The top and left sides of the control volume are also not permeable to species
A
. Initially, there is no species
A
within the control volume.\ a. List at least three valid assumptions for this process.\ b. What is the appropriately simplified General Differential Equation of Mass Transfer for species
A
, in terms of concentration
c_(A)
?\ c. What are the relevant boundary conditions?
25.2 Consider a system for mass transfer of a binary mixture of species A and B within the control volume shown in the figure below. The concentration at the surface (cAs) is constant, the process is very dilute with respect to species A within the control volume, the control volume fluid is still (not well mixed), and there no homogeneous reaction of species A in the control volume. The top and left sides of the control volume are also not permeable to species A. Initially, there is no species A within the control volume. a. List at least three valid assumptions for this process. b. What is the appropriately simplified General Differential Equation of Mass Transfer for species A, in terms of concentration cA ? c. What are the relevant boundary conditions
25.2 Consider a system for mass transfer of a binary mixture of species
A
and
B
within the control volume shown in the figure below. The concentration at the surface
(c_(As))
is constant, the process is very dilute with respect to species
A
within the control volume, the control volume fluid is still (not well mixed), and there no homogeneous reaction of species
A
in the control volume. The top and left sides of the control volume are also not permeable to species
A
. Initially, there is no species
A
within the control volume.\ a. List at least three valid assumptions for this process.\ b. What is the appropriately simplified General Differential Equation of Mass Transfer for species
A
, in terms of concentration
c_(A)
?\ c. What are the relevant boundary conditions?
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