5.9 I can describe the trend in boiling point and viscosity of the main fractions

a.       What is the trend in boiling point of the fractions?
The higher the fractions in the column the lower the boiling point
b.      Define viscosity (source your definition)
The state of being thick. source (
c.     What is the trend in viscosity of the fractions?
As you go up the column, the viscosity increases
d.      What is the trend in colour of the fractions?
The lower in the Fractionating column, the thicker and darker the colour gets.
e.      Why is crude oil separated into fractions?
So it can be useful to people in the world.
f.        What process is used to separate crude oil into fractions?
The fractionating column is used with different temperatures
g.       What physical property allows this process to work?
Different boiling points 


So it can be useful to people in daily life.