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Hydrocarbons in crude oil and natural gas (QUESTIONS (What are the main…
Hydrocarbons in crude oil and natural gas
natural gas
and
crude oil
are natural resources
formed ancient remains of microscopic animals and plants that once lived in the sea
remain became covered by layers of sediment
over millions of years
remains gradually turned into natural gas and crude oil
sediments turned into rock
trapped the oil and gas
natural gas and crude oil
finite resources
not made anymore/ made very slowly
limits the amount available to us
CRUDE OIL
complex mixture of
hydrocarbons
hydrocarbon
a compound that contains hydrogen and carbon atoms only
carbon atoms
can each form four covalent bonds
able to join in different ways in a hydrocarbon molecule
could form chains
could form rings
number of them in a hydrocarbon molecule can vary
could be just one
could be many hundreds of them
exist in different physical states
depends on the size of molecules
depends on complexity of molecules
liquid at room tempreature
has hydrocarbons in the solid and gas states mixed with hydrocarbons in the liquid state
important source of useful substances
fuel
vechiles
aircraft
ships
heating
power station
feedstock
raw materials
for petrochemical industry
QUESTIONS
Explain why natural gas and crude oil are finite resources.
because they were formed over millions of years there is only a certain amount available to us
Explain what is meant by the term hydrocarbon.
a compound containing only carbon and hydrogen atoms
Explain why carbon atoms can be arranged in chains or rings.
this is because a carbon atom can form four covalent bonds and so can be arranged in different ways
Explain why diesel and methane are
non-renewable
fossil fuels
they are both being used up faster than they can be produced and so will run out.
Octane, C₈H₁₈, is one of the substances found in petrol.
Explain why octane is a hydrocarbon/
it contains only hydrogen and oxygen atoms
State why petrol is non-renewable
because we are using it faster than ot can be produced and so we will run out
What are the main features of crude oil and the substances it contains?
it is liquid
contains solid and gas hydrocarbons in liquid hydrocarbons
important source of fuels, feedstock and raw materials for the petrochemical industry
Why are crude oil and natural gas useful?
they are great sources of fuel
Why is crude oil an important finite source of non-renewable sources?
because it is the important source of fuels such as petrol, diesel and kersone which are non-renewable as we are using them faster than they can produced
Fuels
Natural gas
mixture of hydricarbons
in gas form
methane
used for cooking
serval different liquid fuels can be obtained from crude oil
petrol
diesel oil
cars
kerosene
aircraft
non-renewable
they are being used up faster than they are being formed
they will run out one day