3 minutes 4 Seconds
a. What is the trend in boiling point of the fractions? - As you go up the fractionating column the boiling point decreases
b. Define viscosity (source your definition) - Resistance of a liquid to shear forces (and hence to flow) or the thickness of a liquid
c. What is the trend in viscosity of the fractions? - The higher the boiling point the greater the viscosity
d. What is the trend in colour of the fractions? - The higher the boiling point the darker the colour
e. Why is crude oil separated into fractions? - Because each fraction has a different use whilst Crude oil unseparated is virtually useless
f. What process is used to separate crude oil into fractions? - Fractional Distillation
g. What physical property allows this process to work? - Boiling point
Image taken from Chem 4 You pg 144
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