Question: 1. Consider the following concentration profile: Initial condition: c=c0 for x0 c=0 for x>0 Assume that the only boundary condition is that c0 as x

1. Consider the following concentration profile: Initial condition: c=c0 for x0 c=0 for x>0 Assume that the only boundary condition is that c0 as x and c=c0 as x The solution for c(x,t) in terms of error functions is: c(x,t)=c0/2(1erf(x/2/2t)) a) Calculate the time at which c=0.2c0 at x=L. b) Sketch the concentration profile at this time

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