Fuels Flashcards

0
Q

Indicator for water

A

Anhydrous copper sulfate turns from white to blue

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1
Q

Crude oil

A

Thick black liquid found in sedimentary rocks
Fossil fuel
Mixture of hydrocarbons
Non renewable

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2
Q

Word equation for combustion of hydrocarbon

A

Hydrocarbon+ oxygen—–> wate + co2

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3
Q

Soot problems

A

Clog pipes, can cause fires in chimneys

Lung disease

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4
Q

Cause of acid rain

A

Hydrocarbons went burnt release sulfur which reacts with air to form sulfur dioxide this dissolves in rain making it more acidic

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5
Q

Effects if acid rain

A

Makes rivers more acidic, harming organisms
Damages trees
Speeds weathering of buildings

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6
Q

Reducing acid rain

A

Reducing amount of sulfur in fuels

Removing acidic gases from power station emissions

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7
Q

Mean surface temp of earth

A

14*c

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8
Q

Reducing co2

A

Iron seeding - adding iron compounds to ocean , encourages small plants to grow and photosynthesise
Capturing co2 from fuel stations and reacting it to form propane and butane
Reduce fossil fuels use

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9
Q

What is biofuel made from

A

Dead organisms or waste

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10
Q

Production of ethanol

A

Processing sugar can, wheat or sugar beat

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11
Q

Biodiesel

A

Vegetable oil , oil seed rape or soya beans

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12
Q

Advantages of biofuel

A

Renewable carbon neutral can be mixed with petrol

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13
Q

Disadvantages of biofuel

A

Due to manufacture process (fertiliser) not necessarily carbon neutral space for crops

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14
Q

Alkenes

A

Double bonds
Unsaturated hydrocarbons
2n

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15
Q

Saturated

A

Bonded to the maximum number of other atoms

16
Q

Alkanes

A

2n+2

Saturated

17
Q

Alkane or alkene?

A

Bromine water mixed, begins yellow -red/brown (depending on amount of bromine dissolved)
If mixed with alkane no colour change
If mixed with alkene DECOLOURISES

18
Q

Cracking

A

Long chain, less useful alkane

Turned into shorter chain alkane and short chain alkene

19
Q

Monomer

A

Repeating unit used to make a polymer

20
Q

Polymerisation

A

Monomers join ,saturate to form polymer

21
Q

Why is It more difficult to recycle plastic than glass

A

It needs to be sorted before it can be recycled