Given the following data for pipe disposal a treated water to river. What is the length of pipe?

Initial concentration $=4\mathrm{.}5{10}^{5}m\frac{g}{L}$

Final concentration $=2000m\frac{g}{L}$

Velocity in the pipe $=0\mathrm{.}75\frac{m}{s}$

Rate constant, $k,=\frac{0\mathrm{.}23}{m}in$

A$.1060m$

B$.,1\mathrm{.}6m$

C$.,10\mathrm{.}6m$

D$.100\mathrm{.}6m$

Given the following data for pipe disposal a treated water to river. What is the final concentration at the end of pipe?

Length of pipe $=1000m$

Initial concentration $=4\mathrm{.}5{10}^{5}m\frac{g}{L}$

Velocity in the pipe $=0\mathrm{.}75\frac{m}{s}$

Rate constant, $k,=\frac{0\mathrm{.}23}{m}in$

A$.,2713m\frac{g}{L}$

B$.,0\mathrm{.}51m\frac{g}{L}$

C$.2000m\frac{g}{L}$

D$.171m\frac{g}{L}$