00:01
Here we are given with 4 hydrocarbons and we have to arrange them in the decreasing order of their boiling point.
00:09
In the decreasing order of boiling point.
00:17
We know boiling point mainly depends upon the force of attraction between the molecules.
00:24
The intermolecular force of attraction between the molecules.
00:37
If it is more, then boiling point will be more.
00:42
Now, it depends upon molar size, molecular size, depends upon intermolecular force of attraction, depends upon molecular size, and if it is straight -chained, surface area will be more, if surface area is more than boiling point also more.
01:07
And you know straight gene molecules have more surface area.
01:11
Let us first see, count the number of carbon atoms here.
01:15
First here it is having 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8, then 1, 2, 3, 4, 5, 6, 7 8, 1, 2, 3, 4, 5, 6, 7, 8...