Fundamentals of Material Balances

A mixing process unit is used to dilute a solution containing $80$ mass $\%$ of propanol, $15$ mass $\%$ ethanol and water, to a final water composition of $20$ mass $\%.$ The solution is fed into the mixing unit at a rate of $150k\frac{g}{h},$ where it is mixed with a pure water stream entering the mixing unit at an unknown flowrate. The product stream leaving the mixing unit contains $20$ mass $\%$ water.

$1\mathrm{.}1.$ Draw and completely label the schematic diagram of the process.

$1\mathrm{.}2.$ What type of process is this?

$1\mathrm{.}3.$ Calculate the degree of freedom.

$1\mathrm{.}4.$ Calculate the flow rate of the pure water stream and the product stream.

$1\mathrm{.}5.$ Calculate the mass fractions of propanol and ethanol in the product stream.