Find the distance traveled by Brown diffusion(x=(2Dt)^1/2 ) and the distance traveled by sedimentation here, and tell me which is the main behavior between sedimentation and diffusion.

Sketch two graphs, the first for a solid that's solubility is increasing as a function of temperature, and the second for a solid whose solubility decrease as a function of temperature. Be sure to label each axis

Consider a diffusion process in a semi-infinite solid with a source at x=0 mm, the concentration of the diffusing species is 2 nm-3 at x=5 mm and t=1 hr (since the start of the process). At what time the concentration at x=15 mm will reach 3 nm-3 ?

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during a steady state uniolecular diffusion of A through a stagnant film of B, the flux of A will  a. increase linearly with z b. decrease linearly with z c. be independent of z

Problem #1: Diffusion-convection problems wherein the species diffusivity is concentration-dependent often provide a differential equation of the following general form: where Cis the dimensionless concentration and z is the dimensionless distance. Assume vL/D, is a constant. Assume that C= 1 at z = 0, and C=0 when z is very large. Solve the above differential equation and provide an exact analytical equation for C=ft:). Problem #2: In a diffusion-reaction system, reactant 'A' diffuses through a porous catalyst pellet and reacts in a 1* order reaction to produce 'B'. Efficacy of the catalyst in converting 'A' to 'B' is a function of 'x' such that the mass balance equation describing the system at steady-state is: d?c Dari -kīC = 0 Cis the concentration of 'A' that varies in the x-direction, k is the 1t order reaction rate constant, and D is the diffusion coefficient of 'A'. L is the thickness of the catalyst layer, and can be treated as a constant. First, non-dimensionalize the…