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Fuel
A substance with stored energy that can be released relatively easily for use as heat or power
International system of units (SI units)
Joules (J)
Non-renewable
Sources cannot be replenished by natural processes within a relatively short period of time
Fossil fuel formation
Formed from the decomposition of buried dead organisms. The absence of oxygen, heat and pressure alter the chemical structure of the organic matter.
Coal energy potential
Amount of water within coal determines its energy potential. Black coal: 90% carbon: 34kJ/g
Complete combustion reaction (equation)
Fuel+oxygen gas → carbon dioxide + water + energy
Incomplete combustion reaction equation
Fuel+oxygen gas → carbon monoxide +/ carbon + water + energy
Combustion reaction type
Exothermic redox
