Save
...
Unit 3
Alkanes + Halogenoalkanes
Alkanes as Fuels
Save
Share
Learn
Content
Leaderboard
Share
Learn
Created by
Bakhtawar rai
Visit profile
Cards (27)
What are alkanes primarily found in?
Fossil fuels
View source
Why are alkanes considered great fuels?
They release a large amount of
energy
View source
In what systems are alkanes commonly burnt?
Power stations
and car engines
View source
What is produced during complete combustion of alkanes?
Carbon dioxide
and
water
View source
What is the equation for the complete combustion of propane?
C₃H₈
(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(g)
View source
What happens during incomplete combustion of hydrocarbons?
Produces soot and
carbon monoxide
View source
What is the equation for the incomplete combustion of propane?
C₃H₈
(g) + 3½O₂(g) → 3CO(g) + 4H₂O(g)
View source
Why is carbon monoxide dangerous?
It binds to
haemoglobin
, preventing oxygen transport
View source
How can carbon monoxide be removed from exhaust gases?
Using
catalytic converters
View source
What are the main pollutants from vehicle exhausts?
Nitrogen oxides
, unburnt
hydrocarbons
,
carbon monoxide
View source
What is the general formula for nitrogen oxides?
NOₓ
View source
How is nitrogen monoxide produced in car engines?
From
high pressure
and
temperature reactions
View source
What is the reaction to produce nitrogen dioxide from nitrogen monoxide?
2NO(g) +
O₂
(g) → 2NO₂(g)
View source
What is ground-level ozone and how is it formed?
It forms from unburnt
hydrocarbons
and
nitrogen oxides
View source
What are the effects of ground-level ozone on health?
It irritates eyes and aggravates
respiratory
issues
View source
What is the process that converts sulfur into sulfur dioxide when fossil fuels are burnt?
Combustion
of sulfur in fossil fuels
View source
What is produced when sulfur dioxide dissolves in moisture?
Sulfuric acid
View source
What is acid rain and what causes it?
Rain containing
sulfuric
and
nitric
acids
View source
What are the environmental impacts of acid rain?
Destroys
vegetation
and corrodes
buildings
View source
How can sulfur dioxide be removed from power station flue gases?
By reacting with
alkaline
slurry
View source
What is the reaction that forms calcium sulfite from sulfur dioxide?
CaO(s)
+
SO₂(g)
→
CaSO₃(s)
View source
What is the greenhouse effect?
Greenhouse gases
absorb and emit
infrared energy
View source
How does burning fossil fuels contribute to global warming?
It increases
carbon dioxide
levels in the atmosphere
View source
What are the main types of combustion of alkanes?
Complete combustion
: Produces
CO₂
and H₂O
Incomplete combustion: Produces CO,
soot
, and CO₂
View source
What are the pollutants produced from burning fossil fuels?
Carbon monoxide
Nitrogen oxides
Unburnt hydrocarbons
Sulfur dioxide
View source
What are the environmental effects of pollutants from combustion?
Ground-level ozone formation
Acid rain production
Health issues
from pollutants
View source
What is the role of catalytic converters in vehicles?
Remove pollutants from
exhaust gases
Convert
harmful
gases into less harmful
substances
View source