5.13 - I can describe catalytic cracking of long-chain hydrocarbons.

a. What is cracking?


b. Why does it need to be carried out?


c. What is a catalyst?


d. What catalyst is used in this experiment?


e. What allows the liquid paraffin to break down into short-chain hydrocarbons?


d. Which important safety aspects should be carried out?


e. Why are the first bubbles not collected?


f. Why is the gas collected under water?

5.12 - I can recall the problems associated with the fractional distillation of crude oil.

a. When crude oil undergoes ________ ________ there are too many ________ chain hydrocarbons (eg ________) produced and not enough ________ chain hydrocarbons (eg ________).
b. To solve these problems the ________ chain hydrocarbons undergo a chemical reaction called ________. (see objective 5.13)

5.11 - I can recall how nitrogen oxides are formed in car engines.

a. Write the general equation for the combustion of a fuel.


b. During combustion the nitrogen in air can react to form which gases?


c. What condition is necessary for this reaction to take place?


d. In what common object is this condition found?


e. Why is the condition needed for nitrogen to react?


f. What are the dangers of the products from this reaction?

5.10 - I can recall the problems associated with incomplete combustion.

a. What are the properties of carbon monoxide?

b. Explain how carbon monoxide is formed.

c. Explain why carbon monoxide is poisonous.

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?


b. Define Viscosity (source your definition)


c. What is the trend in viscosity of the fractions?


d. What is the trend in colour of the fractions?


e. Why is crude oil sparated into fractions?


f. What process is used to separate crude oil into fractions?


g. What physical property allows this process to work?

5.8 - I can recall the names and uses of the main fractions obtained from crude oil.

Mnemonic to remember the order of gases in the Fractional Column.

Rich

Greedy

Kings

Design

Fantastic

Boats

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5.7 - I can describe how crude oil is sperated.

5.6 - I can recall what crude oil is made from.

a. Define the word hydrocarbon?


b. Crude oil is a            of           .


c. What is crude oil made from?


d. How long does it take to make?


e. Where does the energy originally come from?


f. How is crude oil different from coal?


g. Crude oil, coal and natural gas are collectively know as            fuels.


h. How is crude oil transported when it is extracted from the ground?