00:01
It looks like this question just wants to know which of the following statements is true.
00:06
They used is instead of are, suggesting there's only one statement that's true.
00:12
The first statement says, a temperature increase will cause an increase in vapor pressure.
00:18
This is always true for any substance.
00:20
If we increase the temperature, the molecules move more quickly.
00:24
More of them have enough energy to go into the gas phase.
00:28
And we have a greater vapor pressure.
00:31
So the rest should be false.
00:32
Let's verify.
00:34
The total vapor pressure of a mixture of liquids is equal to the sum of the vapor pressure of each component in the mixture.
00:42
This is false.
00:43
It's the sum of the vapor pressure of each component in the mixture, multiplied by the corresponding mole fraction of each component in the mixture.
00:52
They forgot that latter part...