(3) A pumping system is shown. The pump curve is also shown. Both tank 1 and the process vessel are at the same F What is the minimum impeller size that should be used in this process? Other data below. Explain answer. Note: 1ft=0.3048m \begin{tabular}{l|r|} \hline SG= & 0.86 \\ \hline specific gravity of fluid \\ Q= & 6m, the head losses in all piping, including fittings \\ \hline \end{tabular} (b) For this minimum impeller size, what is the Cv of the control valve at the rated Q? Put Cv in units of (m3/h)/(kPa)0.5