I understand that boiling water with salt in it, you end up with just salt. But, How does it work with two liquids? Wouldn’t they just mix and end up with the same boiling point?
In: Chemistry
That would be how distillation works, for example alcohol and water. The liquid that boils at a lower point will tend to boil off first, so for example distilling alcohol and water you may double the concentration of alcohol because alcohol boils first. You can then do it again and again each time getting a higher concentration of alcohol. However you are correct in the end they will boil at the same rate and you can’t get a higher concentration, this would be called an azeotrope.
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