Using carbon fuels Flashcards
What does burning hydrocarbon fuels produce? and write the equation
methane + oxygen= carbon dioxide + water
when does complete combustion occur?
when a fuel burns in plenty of oxygen
what is made during incomplete combustion? and write the equation
toxic gas and soot
fuel + oxygen = carbon monoxide + water
what method releases more energy, complete or incomplete combustion
complete
why is complete combustion preferred than incomplete combustion?
because incomplete combustion releases carbon monoxide (a poisonous gas)
why do gas fires and boilers need to be serviced regularly?
to check if they aren’t releasing harmful gases i.e. carbon monoxide
name 3 characteristics as to why a certain fuel is chosen?
energy value, availability, toxicity, storage method
what is the word equation for a fuel burning in air?
fuel+ oxygen- carbon dioxide+ water
what are the 2 word equations for incomplete combustion?
fuel+ oxygen- carbon monoxide + water
fuel+ oxygen- carbon + water
what produces more pollution? coal or petrol
coal
what is a better characteristic about coal than petrol?
it doesn’t catch fire as easily
what does volatile mean? and is coal volatile?
able to turn into a gas easily
name another factor that Is bad about coal?
it is dirty and takes up a lot of space
what is used to test for carbon dioxide?
lime water
why would coal not be used as fuel for a car? name 3 factors
it doesn’t ignite easily, it is not a liquid meaning it does circulate easily through the engine, produces acid fumes
what is causing an increase on carbon dioxide emissions?
large countries with a growing population
what causes carbon dioxide emissions?
fossil fuels being burned
what is seen on a Bunsen burner with complete combustion?
a blue flame because there is plenty of air coming through the hole
what are the benefits of complete combustion?
no toxic chemicals are produced, more energy is made and used, less soot is made
what toxic chemical does burning coal produce?
sulphur dioxide
what does sulphur dioxide do to rain?
dissolves in it and creates acid rain
what affect does acid rain have on us?
it destroys stone buildings, kills fishes, damages wildlife and trees
what is the formula of carbon monoxide?
CO
