a. What is the trend in boiling point of the fractions? | The lower down the trend, the higher the boiling point |
b. Define viscosity (source your definition) | Measurement of the flow properties of a material expressed as its resistance to flow |
c. What is the trend in viscosity of the fractions? | The lower down the trend, the lower the viscosity |
d. What is the trend in colour of the fractions? | The lower down the trend, the darker the colour |
e. Why is crude oil separated into fractions? | Different fractions of the crude oil have different uses |
f. What process is used to separate crude oil into fractions? | Fractional distillation |
g. What physical property allows this process to work? | The different boiling points of the hydrocarbons to separate them in crude oil |
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