- #1
runningman19
- 19
- 3
Homework Statement
Hi Everyone,
I am having trouble grasping the concept of Raoult's law, partial pressures etc. One problem in specific is: A system contains 3 moles of methanol and 7 moles of water at 25 degrees celsius. The temperature is raised until there is 40 mol% methanol in the gas phase. How much is left in the liquid phase?
The Txy diagram is attached.
Thanks so much guys,
Nick
2. Homework Equations [/B]
Raoult's Law: yaPa=xaP*a
Txy diagram attached
The Attempt at a Solution
I believe this problem requires the use of Raoult's law in some form. I have written separate Raoult's law equations for water and methanol in the solution, but neither of these equations is solvable because there are too many unknowns and too few equations.