Chapter 2.P2, Problem 4P

Assume the following values for the parameters; $m_0=1,620kg,c_0=100mg/L,A_s=30m^2,v_d=20m/year,\lambda =0$. Use the solutions obtained in Problem $2$ to plot the graphs of $c_s\left(t\right)$ for each of the following cases:

(i) $\gamma =0.5$ for $0\le t\le t_f$, where $c_s\left(t_f\right)=0$ and (ii) $\gamma =2$ for $0\le t\le 100$ years.