Chemical energy - Revision history

Jmdonev: 1 revision imported

2021-10-15T19:13:35Z

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energy>Jmdonev at 23:02, 25 May 2021

2021-05-25T23:02:19Z

← Older revision		Revision as of 23:02, 25 May 2021
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	[[Category:Done ~~2018~~-06-15]]		[[Category:Done 2021-01-31]]
	[[File:Flaring.jpg\|thumbnail\|right\|Figure 1: A natural gas flare in the Middle East<ref>This image was donated by an individual who wishes to remain anonymous.</ref> is combining natural gas with atmospheric oxygen. This chemical reaction releases energy in the form of [[light]] and heat.]]		[[File:Flaring.jpg\|thumbnail\|right\|Figure 1: A natural gas flare in the Middle East<ref>This image was donated by an individual who wishes to remain anonymous.</ref> is combining natural gas with atmospheric oxygen. This chemical reaction releases energy in the form of [[light]] and heat.]]
	<onlyinclude>'''Chemical energy''' is the [[potential energy]] stored in the arrangement of [[atom]]s within [[molecule]]s. Breaking [[chemical bond]]s requires [[energy]], while forming new chemical bonds releases energy. The more energy that's released when a bond forms, the more stable that bond is.</onlyinclude> These bonds are stable because the same amount of energy must be put into these bonds to break them again (this is an example of [[conservation of energy]]). When bonds between atoms are broken or formed, this is called a [[chemical reaction]].		<onlyinclude>'''Chemical energy''' is the [[potential energy]] stored in the arrangement of [[atom]]s within [[molecule]]s. Breaking [[chemical bond]]s requires [[energy]], while forming new chemical bonds releases energy. The more energy that's released when a bond forms, the more stable that bond is.</onlyinclude> These bonds are stable because the same amount of energy must be put into these bonds to break them again (this is an example of [[conservation of energy]]). When bonds between atoms are broken or formed, this is called a [[chemical reaction]].<ref name="RE1"/>

	Many energy-rich molecules are present on Earth; these are molecules that can undergo chemical reactions that make energy available for use. The most prevalent energy-rich molecule that exists on Earth is [[oxygen]], just two oxygen atoms bound together and forming O<sub>2</sub>. These molecules combine with other molecules to give off energy. Almost any molecule that's a collection of [[carbon]] atoms (especially with [[hydrogen]] and [[oxygen]]) will react with oxygen to form [[carbon dioxide]]. Wood and other materials can be burned when there is oxygen present in what is called a [[combustion]] reaction. Burning wood transforms this chemical potential energy and releases it as [[radiant heat]]. Many other [[fuel]]s can be burned in similar reactions.		Many energy-rich molecules are present on Earth; these are molecules that can undergo chemical reactions that make energy available for use. The most prevalent energy-rich molecule that exists on Earth is [[oxygen]], just two oxygen atoms bound together and forming O<sub>2</sub>. These molecules combine with other molecules to give off energy. Almost any molecule that's a collection of [[carbon]] atoms (especially with [[hydrogen]] and [[oxygen]]) will react with oxygen to form [[carbon dioxide]]. Wood and other materials can be burned when there is oxygen present in what is called a [[combustion]] reaction. Burning wood transforms this chemical potential energy and releases it as [[radiant heat]]. Many other [[fuel]]s can be burned in similar reactions.<ref name="RE1"> ''Chemistry,'' Rice University, 2015. [Online]. Available: https://web.ung.edu/media/Chemistry2/Chemistry-LR.pdf</ref>

	[[Fossil fuel]]s like [[petroleum]], [[coal]], and [[natural gas]] are some of the most energy-rich molecules that exist naturally on Earth. These are large [[hydrocarbon]] molecules that come from plants and animals that lived, died, and were buried hundreds of millions of years ago (see this external link for information about the [http://www.chronozoom.com/#/t00000000-0000-0000-0000-000000000000/t48fbb8a8-7c5d-49c3-83e1-98939ae2ae67/tbc082f40-c56c-4934-8132-41a7534f5a12/tbf4bac4b-2ead-4b6f-a75d-c61c61fc53d3/tf24c9b18-198d-4d0a-9a1e-7b46841e5f1f/e3bb545fd-c654-42c5-a9d2-c2d78762f697@x=0&y=0&w=2.8049281314168377&h=1.0821355236139631 carboniferous period]). These fossil fuels are mined, drilled, and pumped to the surface to use as [[fuel]] for [[transportation]], [[electricity generation]], and other uses. Fossil fuels are all harnessed for the chemical energy they store. These are [[Renewable and sustainable energy\|non-renewable resource]]s - they are finite and limited in quantity.		[[Fossil fuel]]s like [[petroleum]], [[coal]], and [[natural gas]] are some of the most energy-rich molecules that exist naturally on Earth. These are large [[hydrocarbon]] molecules that come from plants and animals that lived, died, and were buried hundreds of millions of years ago (see this external link for information about the [http://www.chronozoom.com/#/t00000000-0000-0000-0000-000000000000/t48fbb8a8-7c5d-49c3-83e1-98939ae2ae67/tbc082f40-c56c-4934-8132-41a7534f5a12/tbf4bac4b-2ead-4b6f-a75d-c61c61fc53d3/tf24c9b18-198d-4d0a-9a1e-7b46841e5f1f/e3bb545fd-c654-42c5-a9d2-c2d78762f697@x=0&y=0&w=2.8049281314168377&h=1.0821355236139631 carboniferous period]). These fossil fuels are mined, drilled, and pumped to the surface to use as [[fuel]] for [[transportation]], [[electricity generation]], and other uses. Fossil fuels are all harnessed for the chemical energy they store. These are [[Renewable and sustainable energy\|non-renewable resource]]s - they are finite and limited in quantity.
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	[[Hydrogen]] is both a fuel and an [[energy currency]] (please see [[Hydrogen as an energy currency]]). It can be combusted like a fossil fuel, releasing its chemical potential energy, but unlike hydrocarbons, it does not produce [[carbon dioxide\|CO<sub>2</sub>]] in this reaction.		[[Hydrogen]] is both a fuel and an [[energy currency]] (please see [[Hydrogen as an energy currency]]). It can be combusted like a fossil fuel, releasing its chemical potential energy, but unlike hydrocarbons, it does not produce [[carbon dioxide\|CO<sub>2</sub>]] in this reaction.

			[[Battery\|Batteries]] and [[fuel cell]]s convert chemical potential energy to [[electrical energy]].<ref name="RE1"/> See the page on [[energy conversion technology]] for more information.

	==Combustion Animation==		==Combustion Animation==
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	[[Category:Uploaded]]		[[Category:Uploaded]]
	~~[[Category:Amanda edit]]~~

Jmdonev: 1 revision imported

2018-06-25T14:30:37Z

1 revision imported

← Older revision	Revision as of 14:30, 25 June 2018
(No difference)

Jmdonev at 21:08, 24 June 2018

2018-06-24T21:08:18Z

← Older revision		Revision as of 21:08, 24 June 2018
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	[[Category:Done ~~2015~~-06-01]]		[[Category:Done 2018-06-15]]
	[[File:Flaring.jpg\|thumbnail\|right\|Figure 1: A natural gas flare in the Middle East<ref>This image was donated by an individual who wishes to remain anonymous.</ref> is combining natural gas with atmospheric oxygen. This chemical reaction releases energy in the form of [[light]] and heat.]]		[[File:Flaring.jpg\|thumbnail\|right\|Figure 1: A natural gas flare in the Middle East<ref>This image was donated by an individual who wishes to remain anonymous.</ref> is combining natural gas with atmospheric oxygen. This chemical reaction releases energy in the form of [[light]] and heat.]]
	<onlyinclude>'''Chemical energy''' is the [[potential energy]] stored in the arrangement of [[atom]]s within [[molecule]]s. Breaking [[chemical bond]]s requires [[energy]], while forming new chemical bonds releases energy. The more energy that's released when a bond forms, the more stable that bond is.</onlyinclude> These bonds are stable because the same amount of energy must be put into these bonds to break them again (this is an example of [[conservation of energy]]). When bonds between atoms are broken or formed, this is called a [[chemical reaction]].		<onlyinclude>'''Chemical energy''' is the [[potential energy]] stored in the arrangement of [[atom]]s within [[molecule]]s. Breaking [[chemical bond]]s requires [[energy]], while forming new chemical bonds releases energy. The more energy that's released when a bond forms, the more stable that bond is.</onlyinclude> These bonds are stable because the same amount of energy must be put into these bonds to break them again (this is an example of [[conservation of energy]]). When bonds between atoms are broken or formed, this is called a [[chemical reaction]].
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	==Combustion Animation==		==Combustion Animation==
	Below is an animation showing that a chemical reaction between methane and oxygen leads to freeing up chemical energy during [[hydrocarbon combustion]]. The drop down menu allows a choice of [[hydrocarbon]]s to react with oxygen.		Below is an animation showing that a chemical reaction between methane and oxygen leads to freeing up chemical energy during [[hydrocarbon combustion]]. The drop down menu allows a choice of [[hydrocarbon]]s to react with oxygen.
	<html><iframe src='~~http~~://energyeducation.ca/simulations/combustion/combustion_methane.html' width='900px' height='330px' style='border:none;position:relative;left:-35px'></iframe></html>		<html><iframe src='https://energyeducation.ca/simulations/combustion/combustion_methane.html' width='900px' height='330px' style='border:none;position:relative;left:-35px'></iframe></html>

			==For Further Reading==
			*[[Chemical bond]]
			*[[Combustion]]
			*[[Primary energy]]
			*[[Energy conversion technology]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
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	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]
			[[Category:Amanda edit]]

J.williams: 1 revision imported

2015-08-26T21:30:51Z

1 revision imported

← Older revision	Revision as of 21:30, 26 August 2015
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J.williams at 16:49, 12 August 2015

2015-08-12T16:49:18Z

New page

[[Category:Done 2015-06-01]]
[[File:Flaring.jpg|thumbnail|right|Figure 1: A natural gas flare in the Middle East<ref>This image was donated by an individual who wishes to remain anonymous.</ref> is combining natural gas with atmospheric oxygen. This chemical reaction releases energy in the form of [[light]] and heat.]]
<onlyinclude>'''Chemical energy''' is the [[potential energy]] stored in the arrangement of [[atom]]s within [[molecule]]s. Breaking [[chemical bond]]s requires [[energy]], while forming new chemical bonds releases energy. The more energy that's released when a bond forms, the more stable that bond is.</onlyinclude> These bonds are stable because the same amount of energy must be put into these bonds to break them again (this is an example of [[conservation of energy]]). When bonds between atoms are broken or formed, this is called a [[chemical reaction]].

Many energy-rich molecules are present on Earth; these are molecules that can undergo chemical reactions that make energy available for use. The most prevalent energy-rich molecule that exists on Earth is [[oxygen]], just two oxygen atoms bound together and forming O<sub>2</sub>. These molecules combine with other molecules to give off energy. Almost any molecule that's a collection of [[carbon]] atoms (especially with [[hydrogen]] and [[oxygen]]) will react with oxygen to form [[carbon dioxide]]. Wood and other materials can be burned when there is oxygen present in what is called a [[combustion]] reaction. Burning wood transforms this chemical potential energy and releases it as [[radiant heat]]. Many other [[fuel]]s can be burned in similar reactions.

[[Fossil fuel]]s like [[petroleum]], [[coal]], and [[natural gas]] are some of the most energy-rich molecules that exist naturally on Earth. These are large [[hydrocarbon]] molecules that come from plants and animals that lived, died, and were buried hundreds of millions of years ago (see this external link for information about the [http://www.chronozoom.com/#/t00000000-0000-0000-0000-000000000000/t48fbb8a8-7c5d-49c3-83e1-98939ae2ae67/tbc082f40-c56c-4934-8132-41a7534f5a12/tbf4bac4b-2ead-4b6f-a75d-c61c61fc53d3/tf24c9b18-198d-4d0a-9a1e-7b46841e5f1f/e3bb545fd-c654-42c5-a9d2-c2d78762f697@x=0&y=0&w=2.8049281314168377&h=1.0821355236139631 carboniferous period]). These fossil fuels are mined, drilled, and pumped to the surface to use as [[fuel]] for [[transportation]], [[electricity generation]], and other uses. Fossil fuels are all harnessed for the chemical energy they store. These are [[Renewable and sustainable energy|non-renewable resource]]s - they are finite and limited in quantity.

[[Biofuel]]s are alternatives to fossil fuels that use energy from living or recently living organisms. They are also useful for the chemical energy they store, and are [[Renewable and sustainable energy|renewable resource]]s.

[[Hydrogen]] is both a fuel and an [[energy currency]] (please see [[Hydrogen as an energy currency]]). It can be combusted like a fossil fuel, releasing its chemical potential energy, but unlike hydrocarbons, it does not produce [[carbon dioxide|CO<sub>2</sub>]] in this reaction.

==Combustion Animation==
Below is an animation showing that a chemical reaction between methane and oxygen leads to freeing up chemical energy during [[hydrocarbon combustion]]. The drop down menu allows a choice of [[hydrocarbon]]s to react with oxygen.
<html><iframe src='http://energyeducation.ca/simulations/combustion/combustion_methane.html' width='900px' height='330px' style='border:none;position:relative;left:-35px'></iframe></html>

==References==

{{reflist}}
[[Category:Uploaded]]