Q$4$:

Methyl ethyl ketone $($MEK$)$ is to be recovered from a gas mixture containing $20\mathrm{.}0$mole$\%$ MEK and $80\mathrm{.}0$mole$\%N$ at $85C$ and $3\mathrm{.}5$atm. In a proposed process design, a stream of this mixture is fed to a condenser at a rate of $500\frac{L}{s}$ and is cooled to $15C$ at constant pressure, causing most of the MEK to condense where the effluent streams are in equilibrium.

$($Assume the gas mixture in feed stream is ideal gas$))$

$1-$ Write the equations that simulate above process.

$2-$ Perform the degree of freedom for process $($List your answer in table$).$

$3-$ Determine the flowrate and composition of unknown stream.

$\backslash$table$[[$Component$,$A$,$B$,$C$],[$MEK$,7\mathrm{.}0636,1261\mathrm{.}339,221\mathrm{.}969]]$

$lo{g}_0{p}^{**}=A-\frac{B}{T+C},p^{**}inmmH\%,TinC$