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Crude Oil C1
Properties and uses of crude oil
Question | Answer |
---|---|
What is an alkane? | Chains or carbon atmons surrounded by hydrogen atoms |
What are the first four alkanes? | • Methaen • Ethane • Propane •Butane |
What differences do these alkanes have? | Their chains are all different lengths |
What does saturated mean? | The atoms have formed bonds with as many other atoms as possible |
What is the formula for alkanes? | CnH2n+2 |
If a molecule is shorter what would the properties of the alkane be?(4) | • More runny • More volatile • More flammable • Less viscous |
What does volatile mean? | The temperature at which the atoms turn in to a gas |
What does the volatility help decide? | Which fraction the atoms are best used for |
How does the viscosity help decide which fraction its used at? | More gloopy= good for lubrication etc. |
Why is long molecules useful for petrol? | Because it has a higher boiling point so can safely be stored in the engine and also easily vaporises in the engine |