A solution composed of $50wt\%$ ethanol $(EtOH),10wt\%$ methanol $(MeOH),$ and $40wt\%$ water $(H_{2}O)$ is fed at the rate of $100k\frac{g}{h}$ into a separator that produces one stream at the rate of $60k\frac{g}{h}$ with the composition of $80wt\%$EtOH,$15wt\%$MeOH, and $5wt\%H_{2}O,$ and a second stream of unkown composition. Draw and label a flowchart of this process and do the degree$-$offreedom analysis. Calculate the compostion $($in $wt\%)$ of the three compounds in the unkown stream and its flowrate in $k\frac{g}{h}.$