{"id":115501,"date":"2022-04-25T06:50:02","date_gmt":"2022-04-25T05:50:02","guid":{"rendered":"https:\/\/material-properties.org\/hydrogene-et-helium-comparaison-proprietes\/"},"modified":"2022-04-26T07:20:39","modified_gmt":"2022-04-26T06:20:39","slug":"hydrogene-et-helium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/","title":{"rendered":"Hydrog\u00e8ne et H\u00e9lium – 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’h\u00e9lium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Hydrog\u00e8ne contre H\u00e9lium.<\/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'h\u00e9lium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

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

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

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

\"N\u00e9on<\/a><\/p>\n

\"X\u00e9non<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

Hydrog\u00e8ne et H\u00e9lium – \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

H\u00e9lium<\/h3>\n

C’est un gaz monoatomique incolore, inodore, insipide, non toxique, inerte, le premier du groupe des gaz rares dans le tableau p\u00e9riodique.\u00a0Son point d’\u00e9bullition est le plus bas de tous les \u00e9l\u00e9ments.
\n<\/p><\/div>

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

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

\n

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

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

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

<\/div>\n
\n

Hydrog\u00e8ne et H\u00e9lium – 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

H\u00e9lium<\/a><\/h3>\n

L’h\u00e9lium est utilis\u00e9 \u00e0 de nombreuses fins qui n\u00e9cessitent certaines de ses propri\u00e9t\u00e9s uniques, telles que son bas point d’\u00e9bullition, sa faible densit\u00e9, sa faible solubilit\u00e9, sa conductivit\u00e9 thermique \u00e9lev\u00e9e ou son inertie.\u00a0Sur la production mondiale totale d’h\u00e9lium en 2014 d’environ 32 millions de kg (180 millions de m\u00e8tres cubes standard) d’h\u00e9lium par an, la plus grande utilisation (environ 32 % du total en 2014) concerne les applications cryog\u00e9niques, dont la plupart impliquent le refroidissement des aimants supraconducteurs dans scanners IRM m\u00e9dicaux et spectrom\u00e8tres RMN.\u00a0La plupart des aimants cliniques sont des aimants supraconducteurs, qui n\u00e9cessitent de l’h\u00e9lium liquide pour les maintenir tr\u00e8s froids.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Hydrog\u00e8ne et H\u00e9lium – 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>\nH\u00e9lium<\/strong><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n0,00009 g\/cm3<\/strong><\/td>\n0,00018 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-272,2 \u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n-252,9 \u00b0C<\/strong><\/td>\n-268,9 \u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n0,1805 W\/mK<\/strong><\/td>\n0,1513 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>\n5,193 J\/g\u00b7K<\/span><\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n0,05868 kJ\/mol<\/span><\/strong><\/td>\n0,0138 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n0,44936 kJ\/mol<\/span><\/strong><\/td>\n0,0845 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’h\u00e9lium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Hydrog\u00e8ne contre H\u00e9lium. 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 H\u00e9lium - Comparaison - Propri\u00e9t\u00e9s - Material Properties<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydrog\u00e8ne et H\u00e9lium - Comparaison - Propri\u00e9t\u00e9s - Material Properties\" \/>\n<meta property=\"og:description\" content=\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’hydrog\u00e8ne et de l’h\u00e9lium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Hydrog\u00e8ne contre H\u00e9lium. Source\u00a0: www.luciteria.com\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-04-25T05:50:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-26T06:20:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/11\/hydrogen-and-helium-comparison-properties.png\" \/>\n<meta name=\"author\" content=\"Nick Connor\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/\",\"url\":\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/\",\"name\":\"Hydrog\u00e8ne et H\u00e9lium - Comparaison - Propri\u00e9t\u00e9s - Material Properties\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#website\"},\"datePublished\":\"2022-04-25T05:50:02+00:00\",\"dateModified\":\"2022-04-26T06:20:39+00:00\",\"author\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"breadcrumb\":{\"@id\":\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\/\/material-properties.org\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hydrog\u00e8ne et H\u00e9lium – Comparaison – Propri\u00e9t\u00e9s\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/material-properties.org\/fr\/#website\",\"url\":\"https:\/\/material-properties.org\/fr\/\",\"name\":\"Material Properties\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/material-properties.org\/fr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"},\"url\":\"https:\/\/material-properties.org\/fr\/author\/matan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hydrog\u00e8ne et H\u00e9lium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/","og_locale":"fr_FR","og_type":"article","og_title":"Hydrog\u00e8ne et H\u00e9lium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","og_description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’hydrog\u00e8ne et de l’h\u00e9lium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Hydrog\u00e8ne contre H\u00e9lium. Source\u00a0: www.luciteria.com","og_url":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/","og_site_name":"Material Properties","article_published_time":"2022-04-25T05:50:02+00:00","article_modified_time":"2022-04-26T06:20:39+00:00","og_image":[{"url":"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/11\/hydrogen-and-helium-comparison-properties.png"}],"author":"Nick Connor","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Nick Connor","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/","url":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/","name":"Hydrog\u00e8ne et H\u00e9lium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","isPartOf":{"@id":"https:\/\/material-properties.org\/fr\/#website"},"datePublished":"2022-04-25T05:50:02+00:00","dateModified":"2022-04-26T06:20:39+00:00","author":{"@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb"},"breadcrumb":{"@id":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/material-properties.org\/fr\/hydrogene-et-helium-comparaison-proprietes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/material-properties.org\/fr\/"},{"@type":"ListItem","position":2,"name":"Hydrog\u00e8ne et H\u00e9lium – Comparaison – Propri\u00e9t\u00e9s"}]},{"@type":"WebSite","@id":"https:\/\/material-properties.org\/fr\/#website","url":"https:\/\/material-properties.org\/fr\/","name":"Material Properties","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/material-properties.org\/fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb","name":"Nick Connor","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","caption":"Nick Connor"},"url":"https:\/\/material-properties.org\/fr\/author\/matan\/"}]}},"_links":{"self":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/115501"}],"collection":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/comments?post=115501"}],"version-history":[{"count":0,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/115501\/revisions"}],"wp:attachment":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/media?parent=115501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/categories?post=115501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/tags?post=115501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}