Vapor Pressure of Liquid Solution
Vapor Pressure of Liquid Solution
(OP)
If I have a solution of one liquid, say gasoline, of known vapor pressure,
dissolved in another liquid of known vapor pressure, say diesel fuel
- what's the vapor pressure of the solution?
dissolved in another liquid of known vapor pressure, say diesel fuel
- what's the vapor pressure of the solution?





RE: Vapor Pressure of Liquid Solution
RE: Vapor Pressure of Liquid Solution
Would Raoult's law give a pretty good guess?
VPtot = X1*VP1 + X2*VP2
Where X's are molar %
RE: Vapor Pressure of Liquid Solution
One shouldn't forget the huge amount of work that has been done to predict the VP of a gasoline (reformulated or not) depending on the blending VP values of the components (oxygenates and others) i/o to regulate the permissible amount of butanes.
The applicability of Raoult's law for large dilutions should better be checked by actual lab testing. Don't you think so ?
RE: Vapor Pressure of Liquid Solution
Obviously, testing would be best.