Crude oil + natural gas Flashcards

1
Q

How are natural gas and crude oil formed

A

underground over millions of years, high pressure and temps from animal and plants remains

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2
Q

What are natural gas and crude oil

A

finite resources

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3
Q

What is crude oil?

A

complex misture of lots of different hhydrocarbons

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4
Q

What is a hydrocarbon

A

compound which contains hydrogen and carbon atoms only

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5
Q

WHat is alkane general formula

A

CnH2n+2

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6
Q

What are hydrocarbons soperated into

A

fractions

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7
Q

How are fractions seperated

A

fractional distilation

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8
Q

What is natural gas

A

mixture of hydrocarbons in the gas state

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9
Q

Where does fractional distillation happen

A

fractionating column

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10
Q

Where is the column the hottest

A

the bottom

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11
Q

What is the order of the fractions

A

-gases
-Petrol
-Kerosene
-Diesel oil
-Fuel oil
Bitumen

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12
Q

What are gases used for

A

heating and cooking

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13
Q

What is petrol used for

A

fuel for car

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14
Q

What is Kerosene used for

A

fuel for aircraft

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15
Q

What is diesel oil used for

A

fuel for some cars and trains

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16
Q

What is fuel oil used for

A

fuel large ships and some power stations

17
Q

What is bitumen used for

A

surfacing roads

18
Q

What are alkanes

A

hydrocarbons that have a single convalent bond

19
Q

What is a homologous series

A

family of molecules whoch have same general formula and share similar chemical proporties

20
Q

Why do larger molecules have a higher boilling point

A

intermolecular

21
Q

What catalyst is used for crackingr

A

powdered aluminium oxide

22
Q

Describe the cracking process

A

vaporised hc passed over catalyst

23
Q

What does craking break into

A

shorter alkane + alkene

24
Q

What id the general formula for alkenes

A

CnH2n