00:01
For this question, we have a boiling point composition curve that looks something like this.
00:07
We've got zero mole fraction, taluing, all the way up to one.
00:15
And because the mixture is with benzene, then here we have pure benzene, and here we have no benzene.
00:27
And on the x -axis, we have the temperature in degrees celsius.
00:34
And the curve looks something like this, where this is the composition of the vapor.
00:47
And the black line is the composition of the liquid.
00:53
They want to know what the initial boiling point is for a solution that's 50 % tallywing and 50 % benzene.
01:03
So we'll go right to the middle.
01:06
We go up to the liquid line and then drop over to the temperature...