$(20$ points$)$ Use a DePriester chart to generate a temperature$-$composition diagram $($similar in format to Figure $2-3,$ Wankat$)$ for $n-$pentane and ethane and at $600$kPa. Specifically:

a$.$ Use a DePriester chart to generate and submit a table$(15$ points$)$ A mixture of $30$ mole $\%$ ethanol and $70$ mole $\%$ water initially at $40C$ and

$1$atm is heated.

a$.$ At what temperature does the mixture begin to boil? What is the composition of the

first bubble of vapor?

b$.$ At what temperature would it stop boiling $($assume no material is removed$)?$ What

is the composition of the last droplet of liquid?

c$.$ At $87C,$ what fraction is liquid? Hint: The Lever rule can be helpful here.

d$.$ When $60\%$ has been vaporized, what is the temperature, and what are the liquid and

vapor compositions?of data with the format shown below. The table is similar in content to Table $2-1$ and is what you will use to construct the temperature$-$composition diagram in $($b$).$ Use downloadable copies of the DePriester charts in Module $2.$

$\backslash$table$[[T,C,K_A,K_B,x_A,y_A$