What Determines the Boiling Point of an Organic Mixture?

[Soaring Crane]

If one has a mixture of borneol (standard bp: 210 C) and verbenone (standard bp: 227.5 C), would the mixture's boiling point theoretically be the average of the two (218.75 C), or is there something else I have to take into consideration (vapor pressure)?

Thanks.

 

[sicjeff]

Raoult's law and the Antoine equation would be a good place to start.

 

[GCT]

What's the molar volumes of the alcohol and the ketone?