Question #a2b19
1 Answer
I think I know what your problem is..
Explanation:
Raoult's law indeed states that the partial pressure of a gas varies directly as its mole fraction,
where
-
#P_ "a"# is the partial pressure of component#"a"# of the gaseous mixture (which is above the solution), -
#chi_ "a"# is the mole fraction of#"a"# in the solution, and -
#P_ "a"# is the pure vapor pressure of#"a"#
(This is a result of the colligative property called vapor-pressure lowering)
In your problem, it said that as concentration increases, the mole fraction increases, and the partial pressure decreases. The
This may have been a result of confusion, but
That is,