Two flow streams represented by $K$ and $M$ on the triangular diagram enter a mixer at $40k\frac{g}{m}in$ and

$80k\frac{g}{m}in,$ respectively.

$($a$)(10$ pts$)$ carry out mass balance to determine the overall composition in the mixer and mark it on

the phase diagram.

$($b$)(25$ pts$)$ Two equilibrium liquid phases will develop in the mixer. Draw a tie line to determine

their compositions and then the flow rate in $k\frac{g}{m}in$ of the water$-$rich liquid phase.