Cracking & Hydrocarbons

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  • Created by: MattJG
  • Created on: 09-02-17 21:02
Are larger hydrocarbons more or less viscous than smaller hydrocarbons?
More
1 of 16
Do larger hydrocarbons have a higher or lower boiling point than smaller hydrocarbons?
Higher
2 of 16
Are larger hydrocarbons more or less flammable than smaller hydrocarbons?
Less
3 of 16
Are large hydrocarbons usually more useful as fuels than smaller hydrocarbons?
No
4 of 16
What is the scientific term used for the chemical reaction when a fuel burns?
Combustion
5 of 16
What is the name of the process by which large hydrocarbons are broken up into smaller, more useful molecules?
Cracking
6 of 16
True or false: During the cracking process, hydrocarbons are first heated to vaporise them.
True
7 of 16
During cracking, hydrocarbons are often passed over a substance so that they break apart. What is this substance known as?
Catalyst
8 of 16
During cracking, the catalyst __________ the bonds in the large hydrocarbon.
Breaks
9 of 16
Cracking by heating to a very high temperature is an example of what type of reaction?
Thermal decomposition
10 of 16
As well as alkanes, what other group of hydrocarbons are made as a result of cracking?
Alkenes
11 of 16
What substance is used to test for an unsaturated hydrocarbon?
Bromine
12 of 16
What is produced by the combustion of Hydrogen?
Water
13 of 16
Are alkanes more reactive than alkenes?
No
14 of 16
Apart from alkenes and alkanes what else is made during the process of cracking?
Hydrogen
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The process of cracking sometimes involves vapourising the hydrocarbons and then mixing the vapours with... what?
Steam
16 of 16

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Card 2

Front

Do larger hydrocarbons have a higher or lower boiling point than smaller hydrocarbons?

Back

Higher

Card 3

Front

Are larger hydrocarbons more or less flammable than smaller hydrocarbons?

Back

Preview of the front of card 3

Card 4

Front

Are large hydrocarbons usually more useful as fuels than smaller hydrocarbons?

Back

Preview of the front of card 4

Card 5

Front

What is the scientific term used for the chemical reaction when a fuel burns?

Back

Preview of the front of card 5
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Comments

Alice Middleton

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Really useful and effective

Hai_ItzAmi

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Great for memory

Hai_ItzAmi

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haha look the comment before me was from exactly a yr ago

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