{"id":115497,"date":"2022-04-25T06:15:32","date_gmt":"2022-04-25T05:15:32","guid":{"rendered":"https:\/\/material-properties.org\/hydrogene-et-azote-comparaison-proprietes\/"},"modified":"2022-04-26T07:13:29","modified_gmt":"2022-04-26T06:13:29","slug":"hydrogene-et-azote-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/hydrogene-et-azote-comparaison-proprietes\/","title":{"rendered":"Hydrog\u00e8ne et Azote – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’hydrog\u00e8ne et de l’azote, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Hydrog\u00e8ne contre Azote.<\/em><\/p>\n

\"hydrog\u00e8ne<\/p>\n

\n
<\/span>Comparer l'hydrog\u00e8ne avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"H\u00e9lium<\/a><\/p>\n

\"Oxyg\u00e8ne<\/a><\/p>\n

\"Carbone<\/a><\/p>\n

\"Aluminium<\/a><\/p>\n

\"Lithium<\/a><\/p>\n

\"Azote<\/a><\/p>\n

\"Fluor<\/a><\/p>\n

\"Sodium<\/a><\/p>\n

\"Calcium<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

\n
<\/span>Comparer l'azote avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"Hydrog\u00e8ne<\/a><\/p>\n

\"H\u00e9lium<\/a><\/p>\n

\"Lithium<\/a><\/p>\n

\"B\u00e9ryllium<\/a><\/p>\n

\"Carbone<\/a><\/p>\n

\"Oxyg\u00e8ne<\/a><\/p>\n

\"Phosphore<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

Hydrog\u00e8ne et Azote – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Hydrog\u00e8ne<\/h3>\n

Avec un poids atomique standard d’environ 1,008, l’hydrog\u00e8ne est l’\u00e9l\u00e9ment le plus l\u00e9ger du tableau p\u00e9riodique.\u00a0Sa forme monoatomique (H) est la substance chimique la plus abondante de l’Univers, constituant environ 75 % de toute la masse baryonique.
\n<\/p><\/div>

<\/div><\/div>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Azote<\/h3>\n

L’azote est un gaz non r\u00e9actif incolore et inodore qui forme environ 78 % de l’atmosph\u00e8re terrestre. L’azote liquide (fabriqu\u00e9 par distillation de l’air liquide) bout \u00e0 77,4 kelvins (-195,8 \u00b0C) et est utilis\u00e9 comme liquide de refroidissement.
\n<\/p><\/div>

<\/div><\/div>\n<\/div><\/div>\n
<\/div>\n
\n

\"Hydrog\u00e8ne<\/p>\n<\/div><\/div>\n

\n

\"Azote<\/p>\n

<\/p><\/div><\/div>\n

Source\u00a0: www.luciteria.com<\/p>\n

<\/div>\n
\n

Hydrog\u00e8ne et Azote – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Hydrog\u00e8ne<\/a><\/h3>\n

L’hydrog\u00e8ne est polyvalent et peut \u00eatre utilis\u00e9 de diff\u00e9rentes mani\u00e8res.\u00a0Ces usages multiples peuvent \u00eatre regroup\u00e9s en deux grandes cat\u00e9gories.\u00a0L’hydrog\u00e8ne comme mati\u00e8re premi\u00e8re.\u00a0Un r\u00f4le dont l’importance est reconnue depuis des d\u00e9cennies et qui continuera de cro\u00eetre et d’\u00e9voluer.\u00a0La plus grande utilisation unique d’hydrog\u00e8ne dans le monde est la fabrication d’ammoniac, qui consomme environ les deux tiers de la production mondiale d’hydrog\u00e8ne.\u00a0L’hydrog\u00e8ne est polyvalent et peut \u00eatre utilis\u00e9 de diff\u00e9rentes mani\u00e8res.\u00a0Ces usages multiples peuvent \u00eatre regroup\u00e9s en deux grandes cat\u00e9gories.\u00a0L’hydrog\u00e8ne comme mati\u00e8re premi\u00e8re pour d’autres proc\u00e9d\u00e9s chimiques.\u00a0Un r\u00f4le dont l’importance est reconnue depuis des d\u00e9cennies et qui continuera de cro\u00eetre et d’\u00e9voluer.\u00a0Et l’hydrog\u00e8ne comme vecteur \u00e9nerg\u00e9tique.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Azote<\/a><\/h3>\n

L’azote sous diverses formes chimiques joue un r\u00f4le majeur dans un grand nombre de probl\u00e8mes environnementaux.\u00a0Les applications des compos\u00e9s azot\u00e9s sont naturellement extr\u00eamement vari\u00e9es du fait de l’immensit\u00e9 de cette classe : ainsi, seules les applications de l’azote pur lui-m\u00eame seront consid\u00e9r\u00e9es ici.\u00a0Les deux tiers de l’azote produit par l’industrie sont vendus sous forme de gaz et le tiers restant sous forme liquide.\u00a0En m\u00e9tallurgie, la nitruration est un processus de c\u00e9mentation dans lequel la concentration en azote de surface d’un ferreux est augment\u00e9e par diffusion \u00e0 partir du milieu environnant pour cr\u00e9er une surface c\u00e9ment\u00e9e.\u00a0La nitruration produit une surface de produit dure et tr\u00e8s r\u00e9sistante \u00e0 l’usure (profondeurs peu profondes) avec une bonne capacit\u00e9 de charge de contact, une bonne r\u00e9sistance \u00e0 la fatigue par flexion et une excellente r\u00e9sistance au grippage.\u00a0L’ammoniac et les nitrates produits synth\u00e9tiquement sont les principaux engrais industriels,\u00a0et les nitrates d’engrais sont des polluants cl\u00e9s dans l’eutrophisation des syst\u00e8mes d’eau.\u00a0Outre son utilisation dans les engrais et les r\u00e9serves d’\u00e9nergie, l’azote est un constituant de compos\u00e9s organiques aussi divers que le Kevlar utilis\u00e9 dans les tissus \u00e0 haute r\u00e9sistance et le cyanoacrylate utilis\u00e9 dans la superglue.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Hydrog\u00e8ne et Azote – Comparaison dans le tableau<\/h2>\n<\/div><\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/td>\nHydrog\u00e8ne<\/strong><\/td>\nAzote<\/strong><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n0,00009 g\/cm3<\/strong><\/td>\n0,00125 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n-259,1 \u00b0C<\/strong><\/td>\n-209,9 \u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n-252,9 \u00b0C<\/strong><\/td>\n-195,8 \u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n0,1805 W\/mK<\/strong><\/td>\n0,02598 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n14.304 J\/g\u00b7K<\/span><\/strong><\/td>\n1,04 J\/g\u00b7K<\/span><\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n0,05868 kJ\/mol<\/span><\/strong><\/td>\n(N2) 0,7204 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n0,44936 kJ\/mol<\/span><\/strong><\/td>\n(N2) 5,56 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’hydrog\u00e8ne et de l’azote, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Hydrog\u00e8ne contre Azote. Source\u00a0: www.luciteria.com<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"\nHydrog\u00e8ne et Azote - Comparaison - Propri\u00e9t\u00e9s - Material Properties<\/title>\n<meta name=\"description\" content=\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'hydrog\u00e8ne et de l'azote, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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