Question: Determine expressions for the mean residence time given outward diffusional release into a perfect sink from a) A cylindrical monolithic device of radius a,

Determine expressions for the mean residence time given "outward" diffusional release into

Determine expressions for the mean residence time given "outward" diffusional release into a perfect sink from a) A cylindrical monolithic device of radius a, with ends capped. b) A spherical device of radius a. In both cases, assume drug is initially uniformly dissolved throughout the the device. Express your answers as algebraic functions of a and D, not as an infinite series. (Hint: I suggest adapting Method 2 presented in the notes.)

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