Given the flow sheet below with the information provided, and given that component $B$ in the top product of

unit $1($stream $3)$ is $4\%$ of the total benzene fed to the unit. Answer the following questions:

a$.$ Fill out the degrees of freedom analysis table below.

b$.$ Based on the results of part a$,$ is the flow sheet solvable using the given information? If the

answer is no$,$ assume $x_{A8}=0\mathrm{.}2.$

c$.$ What is your strategy for solution, i$.$e$.$ the sequence of solution $($which unit will be solved

first, then which follows and so on until all the variables are calculated$)$

d$.$ Calculate all unknown variables $($flow rates and compositions$).$