The vapor pressure of a liquid at 25C is 200 torr. What will happen when the barometric pressure Pbar is lowered to 190 torr?
1. More information is needed to determine what will happen.
2. ?Hf for the liquid will approach ?Gvap.
3. The liquid will begin to sublime.
4. The liquid will begin to boil.
5. The vapor pressure of the liquid will abruptly increase to 1 atm because the solution is boiling.