1-butanol and chlorobenzene form a minimum boiling point, Ask an Expert

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1-butanol and chlorobenzene form a minimum boiling point azeotropic system. The mole fraction of 1-butanol in the liquid (x) and vapour (y) phases at 1.000 atm is given below for a variety of boiling temperatures

T/K 396.57 393.94 391.60 390.15 389.03 388.66 388.57

X 0.1065 0.17 0.2646 0.3687 0.5017 0.6091 0.7171

Y 0.2859 0.3691 0.4505 0.5138 0.5840 0.6409 0.7070

Pure chlorobenzene boils at 404.86 K. (a) Construct the chlorobenzene-rich portion of the phase diagram from the data. (b) Estimate the temperature at which a solution whose mole fraction of 1-butanol is 0.300 begins to boil. (c) State the compositions and relative proportions of the two phases present after a solution initially 0.300 1-butanol is heated to 393.94 K

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Category:- Chemistry
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