Fuels And Earth Science Flashcards

1
Q

What is crude oil

A

A complex mixture of different hydrocarbons

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2
Q

What can crude oil be separated out into

A

Fractions

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3
Q

How are the different fractions in crude oil separated out

A

Using fractional distillation

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4
Q

What is petrol used for

A

Fuel in cars

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5
Q

What is kerosene used for

A

Fuel in aircraft

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6
Q

What is diesel oil used for

A

Used as a fuel in some cars and larger vehicles eg. Trains

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7
Q

What are hydrocarbons

A

Compounds which contain just carbon and hydrogen

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8
Q

What is fuel oil used for

A

It is used as a fuel for large ships and in some power stations

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9
Q

What is bitumen used for

A

To surface roads and roofs

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10
Q

What is a homologous series

A

A family of molecules which have the same general formula and share similar chemical properties

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11
Q

What does the size of a hydrocarbon determine

A

Which fraction of crude oil that it will separate into

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12
Q

What does cracking do

A

Turns long saturated molecules into smaller unsaturated molecules

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13
Q

What are alkanes

A

Saturated molecules

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14
Q

What are alkenes

A

Unsaturated molecules

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15
Q

What is thermal decomposition

A

When one substance breaks down into at least two new ones when you heat it

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16
Q

How do you test for oxygen

A

Checking if the gas will relight a glowing splint