from the plots of the boiling point versus the volume of dis

from the plots of the boiling point versus the volume of distillate in either of the fractional distillations of the ethanol-water mixture,what conclusion can you draw about the homogeneity of the distillate?does it have a constant boiling point? if constant,is it a pure substance?

Solution

I haven\'t done this experiment but if the boiling point was constant for most of the distillation, then the distillate will be homogeneous. This is what happens if an azeotrope is formed i.e. a constant boiling point mixture.
Conversely if the boiling point started off low and gradually increased as the distillate came over , then the distillate will vary in composition during the distillation.