help !~

[alnywk]

it is the experiment that i did in school!~
topic:boiling point with composition for different mixtures of two miscibe liquids


first: mixing trichloromethane and ethyl ethanoate
so the following is the result~
Volume of trichloromethane/cm3
10 10 10 10 5 2 0
Volume of ethyl ethanoate/cm3
0 2 5 10 10 10 10
Volume % of ethyl ethanoate
Boiling point/0C
60 65 70 68 67 66 63








by plotting boiling point against volume %of ethyl ethanoate . we can see the curve rise but after drop , so why this happen !~???????????/
can any one explain in detail ?????????????????
help me please!~
the boiling point of mixing hexane and propanone just opposite .
it's curve drop but rise slightly .
why ????????
Volume of trichloromethane/cm3
10 10 10 10 5 2 0
Volume of ethyl ethanoate/cm3
0 2 5 10 10 10 10
Volume % of ethyl ethanoate
Boiling point/0C
67 52 49 54 52 57 59

[GCT]

I answered this back at the chemistry forum, it has to do with characteristics of ideal, non-ideal, etc...solutions and boiling point elevation.