6. For the two-component system CS2-CH3COOH, the following data are available on the phase composition of the phases depending on the temperature at P = 0.1 MPa:
T, K 329 327 324 319 317 314 313 312 313 316 319
x (CS2) ppm % 0 1.9 4.8 13 18 29 38 44 87 96 100
y( CS2) ppm % 0 8.3 18 35 44 52 57 59 76 88 100

a) Plot the boiling diagram of the CS2–CH3COOH system; determine the type of short-sighted system.
b) At what temperature does a mixture containing 60% of the mass of component CS2 begin to condense? What is the composition of the first drop of liquid? At what temperature does the condensation of this mixture end? What is the composition of the last bubble of steam?
Show on the diagram with arrows the changes in the composition of the equilibrium phases at the corresponding initial temperature.
c) Mark the figurative points corresponding to the invariant, monovariant and divariant systems.
d) Determine the number of moles of CS2 converted into an azeotropic mixture for the entire system.

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