Du fer qui pompe l'air - Historique des versions https://www.wikidebrouillard.org/w/index.php?title=Du_fer_qui_pompe_l%27air&action=history Historique des versions pour cette page sur le wiki fr MediaWiki 1.31.3 Thu, 28 Mar 2024 22:34:30 GMT Pierreb : update property name https://www.wikidebrouillard.org/w/index.php?title=Du_fer_qui_pompe_l%27air&diff=3488&oldid=prev https://www.wikidebrouillard.org/w/index.php?title=Du_fer_qui_pompe_l%27air&diff=3488&oldid=prev <p>update property name</p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="fr"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Version précédente</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Version du 15 octobre 2019 à 14:41</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Ligne 3 :</td> <td colspan="2" class="diff-lineno">Ligne 3 :</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; 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color: #222; 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>}}</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; 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>}}</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; 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>{{Notes</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; 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>{{Notes</div></td></tr> </table> Tue, 12 Feb 2019 09:41:25 GMT Tess https://www.wikidebrouillard.org/wiki/Discussion:Du_fer_qui_pompe_l%27air Tess : Page créée avec « {{Tuto Details |Licences=Attribution (CC-BY) |Description=Pourquoi et comment se forme la rouille ? |Area=Mechanics |Difficulty=Easy |Duration=10 |Duration-type=minute(s)... » https://www.wikidebrouillard.org/w/index.php?title=Du_fer_qui_pompe_l%27air&diff=2519&oldid=prev https://www.wikidebrouillard.org/w/index.php?title=Du_fer_qui_pompe_l%27air&diff=2519&oldid=prev <p>Page créée avec « {{Tuto Details |Licences=Attribution (CC-BY) |Description=Pourquoi et comment se forme la rouille ? |Area=Mechanics |Difficulty=Easy |Duration=10 |Duration-type=minute(s)... »</p> <p><b>Nouvelle page</b></p><div>{{Tuto Details<br /> |Licences=Attribution (CC-BY)<br /> |Description=Pourquoi et comment se forme la rouille ?<br /> |Area=Mechanics<br /> |Difficulty=Easy<br /> |Duration=10<br /> |Duration-type=minute(s)<br /> }}<br /> {{Introduction}}<br /> {{Materials<br /> |ItemList={{ItemList<br /> |Item=Laine d'acier<br /> }}{{ItemList<br /> |Item=Verre<br /> }}{{ItemList<br /> |Item=Eau<br /> }}{{ItemList<br /> |Item=Bassine<br /> }}<br /> }}<br /> {{Separator}}<br /> {{Tuto Step<br /> |Step_Title=Verser<br /> |Step_Content=* Verser un peu d'eau dans le récipient.<br /> }}<br /> {{Tuto Step<br /> |Step_Title=Coincer<br /> |Step_Content=* Coincer la laine d'acier au fond du verre.<br /> }}<br /> {{Tuto Step<br /> |Step_Title=Retourner<br /> |Step_Content=Retourner le verre (la laine d'acier ne doit pas tomber) et le poser dans le récipient.<br /> }}<br /> {{Notes<br /> |Observations=De la rouille se forme lentement sur la laine d'acier, et le niveau d'eau baisse dans le récipient. On remarque par contre que le niveau d'eau dans le verre a augmenté.<br /> |Explanations==== '''De manière simple''' ===<br /> La rouille est produite par l'association du fer, de l'oxygène et de l'eau. Quand la rouille se forme sur la laine d'acier, elle utilise de l'oxygène : il y a moins d'oxygène dans la verre. Il y a alors de la place disponible dans le verre et comme il faut la combler, l'eau est aspirée dans le verre : le niveau de l'eau monte.<br /> <br /> === '''Questions sans réponses''' ===<br /> * Quelle réaction chimique exacte forme la rouille ?<br /> * Pourquoi l'eau est &quot;aspirée&quot; à l'intérieur du verre ?<br /> |Deepen=La formation de la rouille est appelée la corrosion. La corrosion est l'altération d'un matériau par réaction chimique avec un oxydant.<br /> <br /> Les conditions nécessaires à la réalisation de ce phénomène sont la présence d'eau (H&lt;sub&gt;2&lt;/sub&gt;O) et de dioxygène (O&lt;sub&gt;2&lt;/sub&gt;).<br /> }}<br /> {{Tuto Status<br /> |Complete=Draft<br /> }}</div> Mon, 11 Feb 2019 10:14:31 GMT Tess https://www.wikidebrouillard.org/wiki/Discussion:Du_fer_qui_pompe_l%27air