Using the figure, what is the composition of vapor from a solution containing 8
ID: 521869 • Letter: U
Question
Using the figure, what is the composition of vapor from a solution containing 8 moles of toluene and 12 moles of benzene?
Using the figure, what is the original composition of the liquid whose vapor is found to contain 12 moles of toluene and 8 moles of benzene?
LAB 3 NAME DATE LAB SECTION Fractional Distillation of a Binary Mixture HETP-cdom Compositional Diagram for a Binary Mixture of Benzene and Toluene A 383 378.3 373.3 368.3 D 363.3 358.3 353.3 0.1 0.2 0.4 0.5 0.6 0.7 0.8 0.9 1.0 mol % Benzene uestions C/ (y) anReduelExplanation / Answer
when benzene is 12 moles and tolune is 8 moles in liquid
composition of benzene in liquid = 12 / (12+ 8) = 0.6
if draw a vertical line from the 0.6 point in mol % of benzene to lower curve which is bubble point curve
from the point where the vertical line meets bubble point line draw a line parllel to x axis which meets the upper curve ( dew point curve) from that point draw a vertical line to x axis which will give vapor compostion of the given solution
which is 0.8 benzene and 0.2 toluene
for vapor to liquid we have to do reverse
as we did in previous starting from same 0.6 benzene in x axis draw vertical line to meet upper curve ( dew point curve and continue same as in first
it will give liquiid compositon of
0.35 benzene and 0.65 toleune
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