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What is a Fuel?
A fuel is a
substance that releases energy.
Some fuels
(for example uranium)
release energy
from nuclear
reactions.
Most fuels release their
energy by reacting with oxygen
in the air (burning).
A fuel will burn
more rapidly and release energy
at a
faster rate
if it is supplied with pure oxygen instead of air.
High temperature torches for metal
welding use a
mixture of pure oxygen with a fuel
called acetylene (ethyne).
What type of Substance makes a Good
Fuel?
A substance is a good
fuel if it is easily
available,
releases a large amount of energy,
produces a small amount of pollutant products
and is easy to store and
transport.
The amount of energy released by a fuel
can
be measured using a simple calorimeter.
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