When the boundary layer is present in the shell mass transfer then? – McqOptions

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1.	When the boundary layer is present in the shell mass transfer then?
A.	C<sub>As</sub> = C<sub>Ab</sub>
B.	C<sub>As</sub> ‚Äö√Ñ√∂‚àö¬¢‚Äö√Ñ‚Ä† C<sub>Ab</sub>
C.	C<sub>As</sub> < C<sub>Ab</sub>
D.	C<sub>As</sub> > C<sub>Ab</sub>
Answer» E.

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