https://wiki.guldforum.se/w/index.php?action=history&feed=atom&title=Kemisk_energi
Kemisk energi - Versionshistorik
2026-11-06T20:29:06Z
Versionshistorik för denna sida på wikin
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https://wiki.guldforum.se/w/index.php?title=Kemisk_energi&diff=13212&oldid=prev
Dan Olsson den 5 mars 2013 kl. 19.11
2013-03-05T19:11:54Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Äldre version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versionen från 5 mars 2013 kl. 14.11</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Energi]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Energi]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Fysikalisk kemi]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Fysikalisk kemi]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[af:Chemiese energie]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[ar:طاقة كيميائية (كيمياء)]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[ca:Energia química]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[cs:Chemická energie]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[da:Kemisk energi]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[de:Chemische Energie]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[et:Keemiline energia]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
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Dan Olsson
https://wiki.guldforum.se/w/index.php?title=Kemisk_energi&diff=6057&oldid=prev
Dan Olsson: 1 version
2013-02-24T09:42:08Z
<p>1 version</p>
<p><b>Ny sida</b></p><div>{{källor|datum=2013-02}}<br />
'''Kemisk energi''' är en sorts potentiell [[energi]] som finns lagrad i alla ämnen. Den kemiska energin finns lagrad i atomens bindningar, men när ett bränsle [[eld]]as upp (förbränns) bryts bindningarna och nya bindningar med lägre energi bildas. Överskottet av kemisk energi frigörs som ljusenergi och värmeenergi. Ett exempel på detta är när vi eldar ved:<br />
<br />
Reaktionen startas, molekylernas bindningar bryts, den kemiska energin frigörs och omvandlas till ljusenergi och värmeenergi. Elden skapar alltså värme runtomkring och dessutom ljus runtomkring. Energi kan aldrig försvinna, utan den kan bara omvandlas.<br />
Kemiska ämnen kan vara energirika och energifattiga, ett energifattigt ämne kan bli ett energirikt ämne om man tillsätter energi och vice versa.<br />
<br />
==Exempel==<br />
Om man leder [[elektrisk energi]] genom [[vatten]] ( H<sub>2</sub>O ) som är ett energifattigt ämne så sönderdelas det till syre och väte. Väte är ett energirikt ämne, men för att den kemiska energin i vätet ska kunna släppas ut behövs ett [[oxidationsmedel]] som till exempel syre. När vätet sedan brinner i syret så frigörs exakt samma mängd energi som användes vid elektrolysen. <br />
<br />
2H<sub>2</sub>O + energi –> 2H<sub>2</sub> + O<sub>2</sub><br />
<br />
2H<sub>2</sub> + O<sub>2</sub> –> 2H<sub>2</sub>O + energi<br />
<br />
<br />
<br />
==Se även==<br />
*[[Förbränning]]<br />
*[[Kolets kretslopp]]<br />
*[[Aktiveringsenergi]]<br />
*[[Eld]]<br />
<br />
{{kemistub}}<br />
[[Kategori:Energi]]<br />
[[Kategori:Fysikalisk kemi]]<br />
<br />
[[af:Chemiese energie]]<br />
[[ar:طاقة كيميائية (كيمياء)]]<br />
[[ca:Energia química]]<br />
[[cs:Chemická energie]]<br />
[[da:Kemisk energi]]<br />
[[de:Chemische Energie]]<br />
[[et:Keemiline energia]]<br />
[[en:Chemical energy]]<br />
[[fa:انرژی شیمیایی]]<br />
[[hr:Kemijska energija]]<br />
[[ml:രാസോർജ്ജം]]<br />
[[nl:Chemische energie]]<br />
[[no:Kjemisk energi]]<br />
[[ro:Energie chimică]]<br />
[[simple:Chemical energy]]<br />
[[sk:Chemická energia]]<br />
[[sl:Kemična energija]]<br />
[[sr:Хемијска енергија]]<br />
[[fi:Kemiallinen energia]]<br />
[[tr:Kimyasal enerji]]<br />
[[uk:Хімічна енергія]]<br />
[[zh:化學能]]</div>
Dan Olsson