{"id":40909,"date":"2019-09-25T11:14:41","date_gmt":"2019-09-25T10:14:41","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/what-is-density-physics-definition\/"},"modified":"2020-01-19T16:09:37","modified_gmt":"2020-01-19T15:09:37","slug":"what-is-density-physics-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/es\/what-is-density-physics-definition\/","title":{"rendered":"Qu\u00e9 es la densidad &#8211; F\u00edsica &#8211; Definici\u00f3n"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">\u00bfQu\u00e9 es la densidad?\u00a0En palabras, la densidad (\u03c1) de una sustancia es la masa total (m) de esa sustancia dividida por el volumen total (V) ocupado por esa sustancia.\u00a0Ingenieria termal<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>\u00bfQu\u00e9 es la densidad?<\/h2>\n<figure id=\"attachment_16264\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-16264\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Density-Gas-Liquid-Solid-min.png\"><img loading=\"lazy\" class=\"wp-image-16264 size-medium lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Density-Gas-Liquid-Solid-min-241x300.png\" alt=\"Densidad - Gas - L\u00edquido - S\u00f3lido\" width=\"241\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Density-Gas-Liquid-Solid-min-241x300.png\" \/><\/a><figcaption id=\"caption-attachment-16264\" class=\"wp-caption-text\">Densidades t\u00edpicas de varias sustancias a presi\u00f3n atmosf\u00e9rica.<\/figcaption><\/figure>\n<p><strong>La densidad<\/strong>\u00a0se define como la\u00a0<strong>masa por unidad de volumen<\/strong>\u00a0.\u00a0Es una\u00a0<a title=\"Propiedades extensivas e intensivas\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/extensive-and-intensive-properties\/\"><strong>propiedad intensiva<\/strong><\/a>\u00a0, que se define matem\u00e1ticamente como masa dividida por volumen:<\/p>\n<p><strong>\u03c1 = m \/ V<\/strong><\/p>\n<p>En palabras, la densidad (\u03c1) de una sustancia es la masa total (m) de esa sustancia dividida por el volumen total (V) ocupado por esa sustancia.\u00a0La unidad SI est\u00e1ndar es\u00a0<strong>kilogramos por metro c\u00fabico<\/strong>\u00a0(\u00a0<strong>kg \/ m\u00a0<sup>3<\/sup><\/strong>\u00a0).\u00a0La unidad de ingl\u00e9s est\u00e1ndar es\u00a0<strong>libras de masa por pie c\u00fabico<\/strong>\u00a0(\u00a0<strong>lbm \/ ft\u00a0<sup>3<\/sup><\/strong>\u00a0).\u00a0La densidad (\u03c1) de una sustancia es el rec\u00edproco de su\u00a0<strong>volumen espec\u00edfico<\/strong>\u00a0(\u03bd).<\/p>\n<p><strong>\u03c1 = m \/ V = \u200b\u200b1 \/ \u03c1<\/strong><\/p>\n<p><strong>El volumen espec\u00edfico<\/strong>\u00a0es una\u00a0<strong>variable intensiva<\/strong>\u00a0, mientras que el volumen es una variable extensa.\u00a0La unidad est\u00e1ndar para un volumen espec\u00edfico en el sistema SI es metros c\u00fabicos por kilogramo (m\u00a0<sup>3<\/sup>\u00a0\/ kg).\u00a0La unidad est\u00e1ndar en el sistema ingl\u00e9s es pies c\u00fabicos por libra de masa (ft\u00a0<sup>3<\/sup> \/ lbm).<\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\"><span>Ver tambi\u00e9n:\u00a0<\/span><a title=\"Coeficiente de temperatura del moderador - MTC\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/nuclear-fission-chain-reaction\/reactivity-coefficients-reactivity-feedbacks\/moderator-temperature-coefficient-mtc\/\"><span>c\u00f3mo la densidad influye en la reactividad del reactor<\/span><\/a><\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Materiales m\u00e1s densos en la tierra<\/span><\/h2>\n<p><span>Dado que los\u00a0<\/span><strong><span>nucleones<\/span><\/strong><span>\u00a0(\u00a0<\/span><strong><span>protones<\/span><\/strong><span>\u00a0y\u00a0<\/span><a title=\"Neutr\u00f3n\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/neutron\/\"><strong><span>neutrones<\/span><\/strong><\/a><span>\u00a0) constituyen la mayor parte de la masa de los \u00e1tomos ordinarios, la densidad de la materia normal tiende a estar limitada por lo cerca que podemos empacar estos nucleones y depende de la estructura at\u00f3mica interna de una sustancia.\u00a0El\u00a0<\/span><strong><span>material m\u00e1s denso<\/span><\/strong><span>\u00a0encontrado en la tierra es el\u00a0<\/span><strong><span>metal osmio<\/span><\/strong><span>\u00a0, pero su densidad palidece en comparaci\u00f3n con las densidades de objetos astron\u00f3micos ex\u00f3ticos como las\u00a0<\/span><strong><span>estrellas enanas<\/span><\/strong><span>\u00a0blancas\u00a0y\u00a0<\/span><strong><span>las estrellas de neutrones<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><strong><span>Lista de materiales m\u00e1s densos:<\/span><\/strong><\/p>\n<ol>\n<li><span>Osmio &#8211; 22,6 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Iridium &#8211; 22.4 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Platino &#8211; 21.5 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Renio &#8211; 21.0 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Plutonio &#8211; 19.8 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Oro &#8211; 19.3 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Tungsteno &#8211; 19.3 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Uranio &#8211; 18.8 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Tantalio &#8211; 16.6 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Mercurio &#8211; 13,6 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Rodio &#8211; 12.4 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Torio &#8211; 11.7 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Plomo &#8211; 11.3 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<li><span>Plata &#8211; 10.5 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<\/ol>\n<p><span>Cabe se\u00f1alar que el plutonio es un is\u00f3topo hecho por el hombre y se crea a partir de\u00a0<\/span><a href=\"https:\/\/www.periodic-table.org\/uranium-periodic-table\/\"><span>uranio<\/span><\/a><span>\u00a0en\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-reactor\/\"><span>reactores nucleares<\/span><\/a><span>\u00a0.\u00a0Pero, de hecho, los cient\u00edficos han encontrado trazas de plutonio natural.<\/span><\/p>\n<p><span>Si incluimos elementos hechos por el hombre, el m\u00e1s denso hasta ahora es\u00a0<\/span><strong><span>Hassium<\/span><\/strong><span>\u00a0.\u00a0<\/span><strong><span>El Hassium<\/span><\/strong><span>\u00a0es un elemento qu\u00edmico con el s\u00edmbolo\u00a0<\/span><strong><span>Hs<\/span><\/strong><span>\u00a0y el n\u00famero at\u00f3mico 108. Es un elemento sint\u00e9tico (sintetizado por primera vez en Hasse en Alemania) y radiactivo.\u00a0El is\u00f3topo m\u00e1s estable conocido,\u00a0<\/span><strong><sup><span>269<\/span><\/sup><span>\u00a0Hs<\/span><\/strong><span>\u00a0, tiene una vida media de aproximadamente 9.7 segundos.\u00a0Tiene una densidad estimada de\u00a0<\/span><strong><span>40.7 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0.\u00a0La densidad de Hassium resulta de su\u00a0<\/span><strong><span>alto peso at\u00f3mico<\/span><\/strong><span>\u00a0y de la disminuci\u00f3n significativa en\u00a0<\/span><strong><span>los radios i\u00f3nicos<\/span><\/strong><span>\u00a0de los elementos en la serie de lant\u00e1nidos, conocidos como\u00a0<\/span><strong><span>contracci\u00f3n de lant\u00e1nidos y act\u00ednidos<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>La densidad de Hassium es seguida por\u00a0<\/span><strong><span>Meitnerium<\/span><\/strong><span>\u00a0(elemento 109, llamado as\u00ed por el f\u00edsico Lise Meitner), que tiene una densidad estimada de\u00a0<\/span><strong><span>37.4 x 10\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0.<\/span><\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h2><span>Densidad de materia nuclear<\/span><\/h2>\n<p><strong><span>La densidad nuclear<\/span><\/strong><span>\u00a0es la densidad del n\u00facleo de un \u00e1tomo.\u00a0Es la relaci\u00f3n de masa por unidad de volumen dentro del n\u00facleo.\u00a0Como el n\u00facleo at\u00f3mico transporta la mayor parte de la masa del \u00e1tomo y el n\u00facleo at\u00f3mico es muy peque\u00f1o en comparaci\u00f3n con el \u00e1tomo completo, la densidad nuclear es muy alta.<\/span><\/p>\n<p><span>La densidad nuclear de un n\u00facleo t\u00edpico puede calcularse aproximadamente a partir del tama\u00f1o del n\u00facleo y de su masa.\u00a0<\/span><strong><span>Los\u00a0<\/span><a title=\"Radio Nuclear - Radio del N\u00facleo\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/nuclear-engineering-fundamentals\/neutron-nuclear-reactions\/nuclear-radius-radius-of-nucleus\/\"><span>radios nucleares<\/span><\/a><\/strong><span><strong>\u00a0t\u00edpicos<\/strong>\u00a0son del orden\u00a0<\/span><strong><span>10\u00a0<\/span><\/strong><strong><sup><span>\u221214<\/span><\/sup><\/strong><strong><span>\u00a0m<\/span><\/strong><span>\u00a0.\u00a0Asumiendo forma esf\u00e9rica, los radios nucleares se pueden calcular de acuerdo con la siguiente f\u00f3rmula:<\/span><\/p>\n<p><span>r = r\u00a0<\/span><sub><span>0<\/span><\/sub><span>\u00a0.\u00a0A\u00a0<\/span><sup><span>1\/3<\/span><\/sup><\/p>\n<p><span>donde r\u00a0<\/span><sub><span>0<\/span><\/sub><span>\u00a0= 1.2 x\u00a0<\/span><sup><span>10-15<\/span><\/sup><span>\u00a0m = 1.2 fm<\/span><\/p>\n<p><span>Por ejemplo,\u00a0<\/span><a title=\"Uranio natural\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-fuel\/uranium\/natural-uranium\/\"><strong><span>el uranio natural<\/span><\/strong><\/a><span>\u00a0consiste principalmente en el is\u00f3topo\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-fuel\/uranium\/uranium-238\/\"><sup><span>238<\/span><\/sup><span>\u00a0U<\/span><\/a><span>\u00a0(99.28%), por lo tanto, la masa at\u00f3mica del elemento de uranio est\u00e1 cerca de la masa at\u00f3mica del\u00a0is\u00f3topo\u00a0<\/span><sup><span>238<\/span><\/sup><span>\u00a0U (238.03u).\u00a0Su radio de este n\u00facleo ser\u00e1:<\/span><\/p>\n<p><span>r = r\u00a0<\/span><sub><span>0<\/span><\/sub><span>\u00a0.\u00a0A\u00a0<\/span><sup><span>1\/3<\/span><\/sup><span>\u00a0= 7.44 fm.<\/span><\/p>\n<p><span>Suponiendo que sea esf\u00e9rico, su volumen ser\u00e1:<\/span><\/p>\n<p><span>V = 4\u03c0r\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0\/3 = 1,73 x 10\u00a0<\/span><sup><span>-42<\/span><\/sup><span>\u00a0m\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0.<\/span><\/p>\n<p><span>La definici\u00f3n habitual de densidad nuclear da por su densidad:<\/span><\/p>\n<p><span>\u03c1\u00a0<\/span><sub><span>n\u00facleo<\/span><\/sub><span>\u00a0= m \/ V = \u200b\u200b238 x 1.66 x 10\u00a0<\/span><sup><span>-27<\/span><\/sup><span>\u00a0\/ (1.73 x 10\u00a0<\/span><sup><span>-42<\/span><\/sup><span>\u00a0) =\u00a0<\/span><strong><span>2.3 x 10\u00a0<\/span><sup><span>17<\/span><\/sup><span>\u00a0kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Por lo tanto, la densidad del material nuclear es m\u00e1s de 2.10\u00a0<\/span><sup><span>14<\/span><\/sup><span>\u00a0veces mayor que la del agua.\u00a0Es una inmensa densidad.\u00a0El t\u00e9rmino descriptivo\u00a0<\/span><em><span>densidad nuclear<\/span><\/em><span>\u00a0tambi\u00e9n se aplica a situaciones en las que se producen densidades igualmente altas, como dentro de las estrellas de neutrones.\u00a0Tales densidades inmensas tambi\u00e9n se encuentran en las estrellas de neutrones.<\/span><\/p>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed\">\n<div class=\"su-spoiler-content su-clearfix\">\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Este art\u00edculo se basa en la traducci\u00f3n autom\u00e1tica del art\u00edculo original en ingl\u00e9s. Para m\u00e1s informaci\u00f3n vea el art\u00edculo en ingl\u00e9s. Puedes ayudarnos. Si desea corregir la traducci\u00f3n, env\u00edela a: translations@nuclear-power.com o complete el formulario de traducci\u00f3n en l\u00ednea. Agradecemos su ayuda, actualizaremos la traducci\u00f3n lo antes posible. Gracias.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00bfQu\u00e9 es la densidad?\u00a0En palabras, la densidad (\u03c1) de una sustancia es la masa total (m) de esa sustancia dividida por el volumen total (V) ocupado por esa sustancia.\u00a0Ingenieria termal \u00bfQu\u00e9 es la densidad? Densidades t\u00edpicas de varias sustancias a presi\u00f3n atmosf\u00e9rica. La densidad\u00a0se define como la\u00a0masa por unidad de volumen\u00a0.\u00a0Es una\u00a0propiedad intensiva\u00a0, que se &#8230; <a title=\"Qu\u00e9 es la densidad &#8211; F\u00edsica &#8211; Definici\u00f3n\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/es\/what-is-density-physics-definition\/\" aria-label=\"M\u00e1s en Qu\u00e9 es la densidad &#8211; F\u00edsica &#8211; Definici\u00f3n\">Leer m\u00e1s<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu\u00e9 es la densidad - F\u00edsica - Definici\u00f3n<\/title>\n<meta name=\"description\" content=\"\u00bfQu\u00e9 es la densidad? 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En palabras, la densidad (\\u03c1) de una sustancia es la masa total (m) de esa sustancia dividida por el volumen total (V) ocupado por esa sustancia. Ingenieria termal\",\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/es\/what-is-density-physics-definition\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"es\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/posts\/40909"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/comments?post=40909"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/posts\/40909\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/media?parent=40909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/categories?post=40909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/es\/wp-json\/wp\/v2\/tags?post=40909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}