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They don't have to be. Some fuels are fossil fuels, which are rapidly disappearing right now. Some examples of fossil fuels are oil, which we use for gas, and coal, which we use for heat and electricity. But fossil fuels take millions of years to make more, so we are rapidly using up the fossil fuels of the world.
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∙ 12y ago
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How do fossil fuels store energy?
Fossil fuels contain the chemical energy that plants and algae obtained from sunlight and then stored in sugars. Just as energy chemical energy is stored in sugars, chemical energy is stored in fossil fuels. All it takes to release it is enough heat and oxygen to cause the fuel to burn.
How does chemical energy convert into thermal energy?
Main process is burning. Burning all fuels release chemicalenergy
Does all the energy start out as chemical energy?
No, our energy sources started from the sun (nuclear fusion) which made vegetation grow which turned into fossil fuels, or from stellar events which formed uranium. Then there are energy sources like wind, wave, and tidal, that are driven by the sun's energy, and direct solar energy. When we use fossil fuels, we are using a chemical reaction to release the energy contained in the fuel, but the original formation of the fossil fuel was driven by the sun. Energy from uranium is not chemical at all. Hydro power also depends on rainfall as the source of the energy, and that is caused by the sun's effect on the weather.
How can chemical energy be a bad thing?
Ask the fire brigade! If chemical energy is released too quickly it can be incredibly dangerous. The frequent bushfires of Australia and the recent forest fires in California are good examples. Chemical energy is also responsible for every explosion and shooting (except air guns etc.) there has ever been. On a different level, the chemical energy of fossil fuels is constantly at the centre of conflict and war. However, unless we want to starve to death, chemical energy is not something we can afford to dispense with. chemical energy is responsible for the corrosion of all metallic elements. This will cause a failure of the infrastructure of a country, if left unchecked.
Whats 2 examples of chemical energy?
(more than two) Chemical Energy Examples: Digestive process, batterys, photosynthesis, burning gasoline, burning wood, using TNT, fire works, putting salt on a slug, alchohol, fermintation, rusting. (all of those answers where aproved by my physical science teacher)
All fuels are stores of?
Chemical energy
What are the examples of chemical energy?
Chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction or to transform other chemical substances. Examples of chemical energy are: the digestive process, batteries, photosynthesis, burning gasoline, burning wood, using TNT, fire works, putting salt on a slug, alcohol, fermentation, and rusting.
How do fossil fuels store energy?
Fossil fuels contain the chemical energy that plants and algae obtained from sunlight and then stored in sugars. Just as energy chemical energy is stored in sugars, chemical energy is stored in fossil fuels. All it takes to release it is enough heat and oxygen to cause the fuel to burn.
Major form of energy?
Electricity is a major form of energy. Also chemical energy which all fossil fuels posess.
How does chemical energy convert into thermal energy?
Main process is burning. Burning all fuels release chemicalenergy
What fuels release chemical energy when they are used?
Coal, gas,oil, and wood. All of these are burned (oxidized in air), which releases the chemical energy stored within its chemical bonds.
Which fuels release chemical energy when they are used?
Coal, gas,oil, and wood. All of these are burned (oxidized in air), which releases the chemical energy stored within its chemical bonds.
When fuels are burnt the chemical energy changes to what?
When fuels are burnt first of all chemical energy changes to heat energy and sometimes to light energy as well. then we convert the heat energy into other usable forms of energy. For example, coal is burnt in thermal power stations to produce heat which is then converted to electricity. Vehicles convert chemical energy of fuels to heat and then use this heat to do mechanical work. The process of conversion is complex in both cases.
How are biomass fuels and fossil fuels alike?
All the chemical changes are the same.
Are fossil fuels used to produce energy?
All fuels by definition are used to produce energy, fossil fuels are no exception. (Shorter answer: Yes.)
Does all the energy start out as chemical energy?
No, our energy sources started from the sun (nuclear fusion) which made vegetation grow which turned into fossil fuels, or from stellar events which formed uranium. Then there are energy sources like wind, wave, and tidal, that are driven by the sun's energy, and direct solar energy. When we use fossil fuels, we are using a chemical reaction to release the energy contained in the fuel, but the original formation of the fossil fuel was driven by the sun. Energy from uranium is not chemical at all. Hydro power also depends on rainfall as the source of the energy, and that is caused by the sun's effect on the weather.
How can chemical energy be a bad thing?
Ask the fire brigade! If chemical energy is released too quickly it can be incredibly dangerous. The frequent bushfires of Australia and the recent forest fires in California are good examples. Chemical energy is also responsible for every explosion and shooting (except air guns etc.) there has ever been. On a different level, the chemical energy of fossil fuels is constantly at the centre of conflict and war. However, unless we want to starve to death, chemical energy is not something we can afford to dispense with. chemical energy is responsible for the corrosion of all metallic elements. This will cause a failure of the infrastructure of a country, if left unchecked.
