Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Combustion of alkanes > Flashcards

Combustion of alkanes Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

name 7 pollutants released by the combustion of crude oil

A 
Carbon monoxide
Carbon dioxide  
Nitrogen oxides 
Sulfur dioxide 
Carbon particulates 
Unburnt hydrocarbons
Water vapour
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How is CO produced?

A

Incomplete combustion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Why is CO harmful?

A

It binds to haemoglobin and replaces oxygen in the blood, which means that cells cannot respire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How are nitrogen oxides produced?

A

In petrol engines under high temperatures and high pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Why are nitrogen oxides harmful?

A

They react with water and oxygen to form nitric acid which contributes to acid rain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How is sulphur dioxide formed?

A

Sulfur impurities in crude oil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why is sulphur dioxide harmful?

A

Sulphur dioxide reacts with water and

oxygen to form sulphuric acid which contributes to acid rain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why are carbon particulates harmful?

A

They exacerbate asthma and cause cancer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why are unburnt hydrocarbons harmful?

A

Contribute to photochemical smog which causes a variety of health problems

Greenhouse gas so contributes to climate change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why is water vapour harmful?

A

Greenhouse gas so contributes to climate change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why is carbon dioxide harmful?

A

Greenhouse gas so contributes to climate change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the term for gases released from power stations?

A

Flue gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What happens in flue gas desulfurisation?

A

Calcium oxide/calcium carbonate and water are sprayed into the flue gas

Calcium sulfate (gypsum) is produced which is used to make plaster

(If calcium oxide is used then calcium sulfite is formed (CaSO3 and must be further oxidised to CaSO4)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the overall equation for flue gas desulfurisation using calcium oxide?

A

CaO + 2H2O +SO2 +0.5O2 —–> CaSO4.2H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the overall equation for flue gas desulfurisation using calcium carbonate?

A

CaCO3 + 0.5O2 + SO2 ——> CaSO4 + CO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What harmful gaswes are released by cars?

A

Carbon monoxide, nitrogen oxides, and unburnt hydrocarbons

17
Q

What metal is used to coat the catalytic converter?

A

Platinum or rhodium

18
Q

Why does the catalytic converter have a honeycomb structure?

A

to increase its SA

19
Q

What 2 reactions occur in the catalytic converter?

A

Carbon monoxide + nitrogen oxide ——> nitrogen + carbon dioxide

Hydrocarbons + nitrogen oxide ——> nitrogen + carbon dioxide + water

Chemistry (22 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions