[ponyoponyo]

I need help with this question

If a liquid mix containing 60% B were distilled using an efficient fractional distillation column, what temp would be read on the thermometer?


I don't know if the answer is 63^o or 67^o...

[Rutherford]

Here is an explanation: http://www.chemguide.co.uk/physical/phaseeqia/nonideal.html#top.
It should be obvious from here what will the temperature be after the whole distillation process.