Problem Statement: In a steady$-$state system, O$,$ diffuses through the tissues $($radius$,$ Rusand length L$)$ from the capillaries $($radius$,$ Reap and length L$.)$ and it is consumed within the tissue in a homogeneous reaction $($zero order$).$ Assume there is no convection of O through the tissues, and O$2$ concentration is independent of axial position. The O$,$ concentration at the outer surface of the capillaries is Cap. Derive the particular solution of the O$,$ profile through the tissues that are around $($or enclose$)$ the capillaries. Case il$)$ Assume that the O$,$ is completely consumed by the time it reaches the outer surface of the tissue.

FIND THE FOLLOWING AND PROVIDE DETAILS!

$1)$ IN$-$OUT$+$SOURCE$-$SINK$=$ACCUMLATION

$2)$ TRANSPORT

$3)$ BOUNDARY CONDITIONS

$4)$ GERNERAL AND PARTICULAR SOLUTION WITH DETAILS!!