{"id":49205,"date":"2019-11-14T23:43:26","date_gmt":"2019-11-14T22:43:26","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-a-lei-de-conservacao-definicao\/"},"modified":"2020-02-02T09:50:43","modified_gmt":"2020-02-02T08:50:43","slug":"o-que-e-a-lei-de-conservacao-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-a-lei-de-conservacao-definicao\/","title":{"rendered":"O que \u00e9 a Lei de Conserva\u00e7\u00e3o &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Leis de Conserva\u00e7\u00e3o.\u00a0Uma lei de conserva\u00e7\u00e3o afirma que uma propriedade mensur\u00e1vel de um sistema f\u00edsico isolado n\u00e3o muda \u00e0 medida que o sistema evolui com o tempo.\u00a0Engenharia T\u00e9rmica<\/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>Leis de Conserva\u00e7\u00e3o<\/h2>\n<p>Na f\u00edsica,\u00a0<strong>uma lei de conserva\u00e7\u00e3o<\/strong>\u00a0afirma que uma propriedade mensur\u00e1vel espec\u00edfica de um sistema f\u00edsico isolado n\u00e3o muda \u00e0 medida que o sistema evolui com o tempo.\u00a0Essas propriedades s\u00e3o algumas vezes chamadas de &#8221;\u00a0<strong>constantes do movimento<\/strong>\u00a0&#8220;.\u00a0Diz-se que essas quantidades s\u00e3o \u201c\u00a0<strong>conservadas<\/strong>\u00a0\u201d e as leis de conserva\u00e7\u00e3o resultantes podem ser consideradas os princ\u00edpios mais fundamentais da mec\u00e2nica.\u00a0Na mec\u00e2nica, exemplos de quantidades conservadas s\u00e3o energia, momento e momento angular.\u00a0As\u00a0<strong>leis de conserva\u00e7\u00e3o<\/strong>\u00a0s\u00e3o exatas para um sistema isolado.<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/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<h2><span>A Lei da conserva\u00e7\u00e3o da massa<\/span><\/h2>\n<p><strong><span>A lei de conserva\u00e7\u00e3o da massa<\/span><\/strong><span>\u00a0\u00a0ou o princ\u00edpio da conserva\u00e7\u00e3o da massa afirma que a massa de um objeto ou cole\u00e7\u00e3o de objetos nunca muda ao longo do tempo, n\u00e3o importa como as partes constituintes se reorganizem.<\/span><\/p>\n<p><span>A massa n\u00e3o pode ser criada nem destru\u00edda.<\/span><\/p>\n<p><span>A lei exige que durante qualquer\u00a0<\/span><a title=\"Rea\u00e7\u00f5es nucleares\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/nuclear-reactions\/\"><strong><span>rea\u00e7\u00e3o nuclear<\/span><\/strong><\/a><span>\u00a0,\u00a0<\/span><strong><a title=\"Decaimento radioativo\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/\"><span>decaimento radioativo<\/span><\/a><\/strong><span>\u00a0ou\u00a0<\/span><strong><span>rea\u00e7\u00e3o qu\u00edmica<\/span><\/strong><span>\u00a0em um sistema isolado, a\u00a0<\/span><strong><span>massa<\/span><\/strong><span>\u00a0total\u00a0<strong>dos reagentes<\/strong>\u00a0ou materiais de partida seja igual \u00e0\u00a0<\/span><strong><span>massa dos produtos<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-60 lgc-tablet-grid-60 lgc-mobile-grid-100 lgc-equal-heights  lgc-first\">\n<div class=\"inside-grid-column\"><span>O conceito de conserva\u00e7\u00e3o de massa \u00e9 amplamente utilizado em muitos campos, como\u00a0<\/span><strong><span>qu\u00edmica, mec\u00e2nica e din\u00e2mica de fluidos<\/span><\/strong><span>\u00a0.\u00a0Em qu\u00edmica, a lei da conserva\u00e7\u00e3o da massa pode ser explicada da seguinte maneira (veja a figura da combust\u00e3o do metano).\u00a0As massas de um\u00a0<\/span><strong><span>metano<\/span><\/strong><span>\u00a0e\u00a0<\/span><strong><span>oxig\u00eanio\u00a0<\/span><\/strong><strong><span>juntas<\/span><\/strong><span>\u00a0devem ser iguais \u00e0s\u00a0<\/span><strong><span>massas de di\u00f3xido de carbono e \u00e1gua<\/span><\/strong><span>\u00a0.\u00a0Em outras palavras, durante uma rea\u00e7\u00e3o qu\u00edmica,\u00a0<\/span><strong><span>tudo o que voc\u00ea inicia deve terminar<\/span><\/strong><span>\u00a0, mas pode parecer diferente.<\/span><\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-40 lgc-tablet-grid-40 lgc-mobile-grid-100 lgc-equal-heights  lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-youtube su-responsive-media-yes\"><iframe class=\"lazy-loaded\" src=\"https:\/\/www.youtube.com\/embed\/2S6e11NBwiw?\" width=\"300\" height=\"175\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-lazy-type=\"iframe\" data-src=\"https:\/\/www.youtube.com\/embed\/2S6e11NBwiw?\" data-mce-fragment=\"1\"><\/iframe><\/div>\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\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Law-of-Conservation-of-Matter.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-14132 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Law-of-Conservation-of-Matter.png\" alt=\"Lei de conserva\u00e7\u00e3o da massa\" width=\"768\" height=\"245\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Law-of-Conservation-of-Matter.png\" \/><\/a><span>Historicamente, os gregos antigos j\u00e1 propunham a id\u00e9ia de que a\u00a0<\/span><strong><span>quantidade total de mat\u00e9ria<\/span><\/strong><span>\u00a0no universo \u00e9\u00a0<\/span><strong><span>constante<\/span><\/strong><span>\u00a0.\u00a0O princ\u00edpio da conserva\u00e7\u00e3o da massa foi esbo\u00e7ado pela primeira vez por\u00a0<\/span><strong><span>Mikhail Lomonosov<\/span><\/strong><span>\u00a0em 1748. No entanto, a lei da conserva\u00e7\u00e3o da massa (ou o princ\u00edpio da\u00a0<\/span><strong><span>conserva\u00e7\u00e3o<\/span><\/strong><span>\u00a0da\u00a0<strong>massa \/ mat\u00e9ria<\/strong>\u00a0) como princ\u00edpio fundamental da f\u00edsica foi descoberta por\u00a0<\/span><strong><span>Antoine Lavoisier<\/span><\/strong><span>\u00a0no final do s\u00e9culo XVIII. .\u00a0Foi de grande import\u00e2ncia no progresso\u00a0<\/span><strong><span>da alquimia para a qu\u00edmica moderna<\/span><\/strong><span>\u00a0.\u00a0Antes dessa descoberta, havia perguntas como:<\/span><\/p>\n<ul>\n<li><strong><span>Por que um peda\u00e7o de madeira pesa menos ap\u00f3s a queima?<\/span><\/strong><\/li>\n<li><strong><span>Uma quest\u00e3o ou parte dela pode desaparecer?<\/span><\/strong><\/li>\n<\/ul>\n<p><span>No caso da madeira queimada, o problema era a medi\u00e7\u00e3o do peso dos\u00a0<\/span><strong><span>gases liberados<\/span><\/strong><span>\u00a0.\u00a0As medi\u00e7\u00f5es do peso dos gases liberados eram complicadas, devido ao\u00a0<\/span><strong><span>efeito<\/span><\/strong><span>\u00a0de\u00a0<strong>flutuabilidade<\/strong>\u00a0da atmosfera da Terra no peso dos gases.\u00a0Uma vez entendida, a conserva\u00e7\u00e3o da massa era de import\u00e2ncia crucial no progresso da alquimia para a moderna ci\u00eancia natural da qu\u00edmica.<\/span><\/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\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Lei de Conserva\u00e7\u00e3o de Energia<\/span><\/h2>\n<p><strong><span>A lei da conserva\u00e7\u00e3o de energia<\/span><\/strong><span>\u00a0\u00e9 uma das leis b\u00e1sicas da f\u00edsica, juntamente com a\u00a0<\/span><a title=\"Lei de conserva\u00e7\u00e3o da massa\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-matter\/\"><strong><span>conserva\u00e7\u00e3o da massa<\/span><\/strong><\/a><span>\u00a0e a conserva\u00e7\u00e3o do momento.\u00a0<\/span><strong><span>A lei de conserva\u00e7\u00e3o de energia<\/span><\/strong><span>\u00a0afirma que a energia pode\u00a0<\/span><strong><span>mudar<\/span><\/strong><span>\u00a0de uma\u00a0<\/span><strong><span>forma<\/span><\/strong><span>\u00a0para outra, mas n\u00e3o\u00a0<\/span><strong><span>pode ser criada ou destru\u00edda<\/span><\/strong><span>\u00a0.\u00a0Ou a defini\u00e7\u00e3o geral \u00e9:<\/span><\/p>\n<p><span>A energia total de um sistema isolado permanece constante ao longo do tempo.<\/span><\/p>\n<figure id=\"attachment_15722\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-15722\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/conservation-of-energy-pendulum.gif\"><img loading=\"lazy\" class=\"wp-image-15722 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/conservation-of-energy-pendulum.gif\" alt=\"lei de conserva\u00e7\u00e3o de energia - p\u00eandulo\" width=\"300\" height=\"225\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/conservation-of-energy-pendulum.gif\" \/><\/a><figcaption id=\"caption-attachment-15722\" class=\"wp-caption-text\"><span>Ber\u00e7o de Newton.\u00a0Um dispositivo que demonstra a Lei de Conserva\u00e7\u00e3o de Energia Mec\u00e2nica e Momentum.<\/span><\/figcaption><\/figure>\n<p><strong><span>Energia<\/span><\/strong><span>\u00a0pode ser definida como a\u00a0<\/span><strong><span>capacidade de trabalhar<\/span><\/strong><span>\u00a0.\u00a0Pode existir em uma variedade de formas e pode ser\u00a0<\/span><strong><span>transformado<\/span><\/strong><span>\u00a0de um tipo de energia para outro de centenas de maneiras.<\/span><\/p>\n<p><span>Por exemplo, queimar gasolina para abastecer carros \u00e9 um processo de convers\u00e3o de energia em que confiamos.\u00a0A\u00a0<\/span><strong><span>energia qu\u00edmica<\/span><\/strong><span>\u00a0da gasolina \u00e9\u00a0<\/span><strong><span>convertida<\/span><\/strong><span>\u00a0em\u00a0<\/span><strong><span>energia t\u00e9rmica<\/span><\/strong><span>\u00a0, que \u00e9 convertida em\u00a0<\/span><strong><span>energia mec\u00e2nica<\/span><\/strong><span>\u00a0que faz o carro se mover.\u00a0A\u00a0<\/span><strong><span>energia mec\u00e2nica<\/span><\/strong><span>\u00a0foi convertida em\u00a0<\/span><strong><span>energia cin\u00e9tica<\/span><\/strong><span>\u00a0.\u00a0Quando usamos os freios para parar um carro, essa\u00a0<\/span><strong><span>energia cin\u00e9tica<\/span><\/strong><span>\u00a0\u00e9 convertida por fric\u00e7\u00e3o de volta ao calor, ou\u00a0<\/span><strong><span>energia t\u00e9rmica<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Uma conseq\u00fc\u00eancia da lei de conserva\u00e7\u00e3o de energia \u00e9 que uma m\u00e1quina de movimento perp\u00e9tuo do primeiro tipo, que produz trabalho sem a entrada de energia, n\u00e3o pode existir.<\/span><\/p>\n<p><span>O conceito de\u00a0<\/span><strong><span>conserva\u00e7\u00e3o<\/span><\/strong><span>\u00a0de\u00a0<strong>energia<\/strong>\u00a0\u00e9 amplamente utilizado em muitos campos.\u00a0Neste artigo, os seguintes campos s\u00e3o discutidos:<\/span><\/p>\n<ul>\n<li><a title=\"Conserva\u00e7\u00e3o de Energia Mec\u00e2nica\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/conservation-of-mechanical-energy\/\"><strong><span>Conserva\u00e7\u00e3o de Energia Mec\u00e2nica<\/span><\/strong><\/a><\/li>\n<li><a title=\"Conserva\u00e7\u00e3o de Energia na Mec\u00e2nica dos Fluidos - Princ\u00edpio de Bernoulli\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/conservation-of-energy-in-fluid-mechanics-bernoullis-principle\/\"><strong><span>Conserva\u00e7\u00e3o de Energia na Mec\u00e2nica dos Fluidos<\/span><\/strong><\/a><\/li>\n<li><a title=\"Conserva\u00e7\u00e3o de Energia em Termodin\u00e2mica - A Primeira Lei da Termodin\u00e2mica\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/first-law-thermodynamics\/\"><strong><span>Conserva\u00e7\u00e3o de Energia em Termodin\u00e2mica<\/span><\/strong><\/a><\/li>\n<li><a title=\"Conserva\u00e7\u00e3o de Energia em Circuitos El\u00e9tricos\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/conservation-of-energy-in-electrical-circuits\/\"><span>Conserva\u00e7\u00e3o de Energia em Circuitos El\u00e9tricos<\/span><\/a><\/li>\n<li><a title=\"Conserva\u00e7\u00e3o de Energia em Rea\u00e7\u00f5es Qu\u00edmicas\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/conservation-of-energy-in-chemical-reactions\/\"><span>Conserva\u00e7\u00e3o de Energia em Rea\u00e7\u00f5es Qu\u00edmicas<\/span><\/a><\/li>\n<li><a title=\"Conserva\u00e7\u00e3o de energia de massa - Equival\u00eancia de energia de massa\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/conservation-of-mass-energy-mass-energy-equivalence\/\"><strong><span>Conserva\u00e7\u00e3o de Energia na Teoria da Relatividade Especial<\/span><\/strong><\/a><\/li>\n<li><a title=\"Conserva\u00e7\u00e3o de Energia em Rea\u00e7\u00f5es Nucleares\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/conservation-of-energy-in-nuclear-reactions\/\"><strong><span>Conserva\u00e7\u00e3o de Energia em Rea\u00e7\u00f5es Nucleares<\/span><\/strong><\/a><\/li>\n<\/ul>\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\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Lei de Conserva\u00e7\u00e3o de Energia de Massa &#8211; Equival\u00eancia de Energia de Massa<\/span><\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/emc2-e1414305346127.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-45 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/emc2-300x195.png\" alt=\"E = MC2\" width=\"300\" height=\"195\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/emc2-300x195.png\" \/><\/a><span>No in\u00edcio do s\u00e9culo XX, a no\u00e7\u00e3o de massa passou por uma revis\u00e3o radical.\u00a0A massa perdeu seu\u00a0<\/span><strong><span>car\u00e1ter absoluto<\/span><\/strong><span>\u00a0.\u00a0Um dos resultados impressionantes\u00a0<\/span><strong><span>da teoria da relatividade de Einstein<\/span><\/strong><span>\u00a0\u00e9 que\u00a0<\/span><strong><span>massa e energia s\u00e3o equivalentes e convers\u00edveis<\/span><\/strong><span>\u00a0\u00a0entre si.\u00a0<\/span><strong><span>A equival\u00eancia<\/span><\/strong><span>\u00a0entre massa e energia \u00e9 descrita pela famosa f\u00f3rmula de Einstein\u00a0<\/span><strong><a title=\"E = mc2 Significado\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/nuclear-energy\/emc2-meaning\/\"><span>E = mc\u00a0<\/span><sup><span>2<\/span><\/sup><\/a><\/strong><span>\u00a0.\u00a0Em palavras,\u00a0<\/span><strong><span>energia<\/span><\/strong><span>\u00a0\u00e9 igual a\u00a0<\/span><strong><span>massa<\/span><\/strong><span>\u00a0multiplicada pela\u00a0<\/span><strong><span>velocidade da luz ao quadrado<\/span><\/strong><span>.\u00a0Como a velocidade da luz \u00e9 um n\u00famero muito grande, a f\u00f3rmula implica que qualquer pequena quantidade de mat\u00e9ria contenha uma quantidade muito grande de energia.\u00a0A massa de um objeto era considerada equivalente \u00e0 energia, interconvers\u00edvel com energia e aumentando significativamente a velocidades extremamente altas, pr\u00f3ximas \u00e0 da luz.\u00a0A\u00a0<\/span><strong><span>energia total<\/span><\/strong><span>\u00a0de um objeto foi entendida como compreendendo sua\u00a0<\/span><strong><span>massa em repouso<\/span><\/strong><span>\u00a0, bem como seu\u00a0<\/span><strong><span>aumento de massa<\/span><\/strong><span>\u00a0causado pelo\u00a0<\/span><strong><span>aumento na energia cin\u00e9tica<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><strong><span>Na teoria especial da relatividade,<\/span><\/strong><span>\u00a0certos tipos de\u00a0<\/span><strong><span>mat\u00e9ria podem ser criados ou destru\u00eddos<\/span><\/strong><span>\u00a0, mas em todos esses processos, a massa e a energia associadas a essa mat\u00e9ria\u00a0<\/span><strong><span>permanecem inalteradas em quantidade<\/span><\/strong><span>\u00a0.\u00a0Constatou-se que a\u00a0<\/span><strong><span>massa restante de um n\u00facleo at\u00f4mico \u00e9 mensur\u00e1vel menor que a soma das massas restantes de seus pr\u00f3tons, n\u00eautrons e el\u00e9trons constituintes<\/span><\/strong><span>\u00a0.\u00a0A massa n\u00e3o era mais considerada imut\u00e1vel no sistema fechado.\u00a0A diferen\u00e7a \u00e9 uma medida da\u00a0<\/span><a title=\"Energia de liga\u00e7\u00e3o nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/binding-energy\/nuclear-binding-energy\/\"><span>energia de liga\u00e7\u00e3o nuclear<\/span><\/a><span>\u00a0que mant\u00e9m o n\u00facleo unido.\u00a0De acordo com a rela\u00e7\u00e3o de Einstein (\u00a0<\/span><strong><a title=\"E = mc2 Significado\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/nuclear-energy\/emc2-meaning\/\"><span>E = mc\u00a0<\/span><sup><span>2<\/span><\/sup><\/a><\/strong><span>\u00a0), esta energia de liga\u00e7\u00e3o \u00e9 proporcional a essa diferen\u00e7a de massa e \u00e9 conhecida como\u00a0<\/span><strong><span>defeito de massa<\/span><\/strong><span>\u00a0.<\/span><\/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\"><\/div>\n<div class=\"inside-grid-column\">\n<figure id=\"attachment_237\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-237\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/nuclear_binding_energy.gif\"><img loading=\"lazy\" class=\"wp-image-237 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/nuclear_binding_energy.gif\" alt=\"Curva de energia de liga\u00e7\u00e3o nuclear.\" width=\"300\" height=\"195\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/nuclear_binding_energy.gif\" \/><\/a><figcaption id=\"caption-attachment-237\" class=\"wp-caption-text\"><span>Curva de energia de liga\u00e7\u00e3o nuclear.<\/span><br \/>\n<span>Fonte: hyperphysics.phy-astr.gsu.edu<\/span><\/figcaption><\/figure>\n<p><span>Durante a\u00a0<\/span><a title=\"Fic\u00e3o nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/fission\/\"><strong><span>divis\u00e3o nuclear<\/span><\/strong><\/a><span>\u00a0ou\u00a0<\/span><a title=\"Fus\u00e3o nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/nuclear-fusion\/\"><strong><span>a fus\u00e3o nuclear<\/span><\/strong><\/a><span>\u00a0, parte da massa do n\u00facleo \u00e9 convertida em enormes quantidades de energia e, portanto, essa massa \u00e9 removida da massa total das part\u00edculas originais e a massa est\u00e1 ausente no n\u00facleo resultante.\u00a0<\/span><strong><span>As energias de liga\u00e7\u00e3o nuclear<\/span><\/strong><span>\u00a0s\u00e3o enormes, s\u00e3o da ordem de um milh\u00e3o de vezes maiores que as energias de liga\u00e7\u00e3o de el\u00e9trons dos \u00e1tomos.<\/span><\/p>\n<p><span>Geralmente, nas\u00a0<a title=\"Rea\u00e7\u00f5es nucleares\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/nuclear-reactions\/\"><strong>rea\u00e7\u00f5es<\/strong><\/a><\/span><strong><span>\u00a0qu\u00edmicas<\/span><\/strong><span>\u00a0e\u00a0<\/span><a title=\"Rea\u00e7\u00f5es nucleares\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/nuclear-reactions\/\"><strong><span>nucleares<\/span><\/strong><\/a><span>\u00a0, ocorre alguma convers\u00e3o entre massa e energia em repouso, de modo que os produtos geralmente t\u00eam massa menor ou maior que os reagentes.\u00a0Portanto, o novo princ\u00edpio de conserva\u00e7\u00e3o \u00e9\u00a0\u00a0<\/span><strong><span>a conserva\u00e7\u00e3o de energia em massa<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Vide tamb\u00e9m:\u00a0<\/span><a title=\"Libera\u00e7\u00e3o de energia da fiss\u00e3o\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/fission\/energy-release-from-fission\/\"><span>Libera\u00e7\u00e3o de energia da fiss\u00e3o<\/span><\/a><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Mass-Defect-Uranium.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-14133 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Mass-Defect-Uranium.png\" alt=\"Defeito em massa\" width=\"575\" height=\"103\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Mass-Defect-Uranium.png\" \/><\/a><\/p>\n<p>&nbsp;<\/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\">\n<div class=\"su-accordion\">\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 artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Leis de Conserva\u00e7\u00e3o.\u00a0Uma lei de conserva\u00e7\u00e3o afirma que uma propriedade mensur\u00e1vel de um sistema f\u00edsico isolado n\u00e3o muda \u00e0 medida que o sistema evolui com o tempo.\u00a0Engenharia T\u00e9rmica Leis de Conserva\u00e7\u00e3o Na f\u00edsica,\u00a0uma lei de conserva\u00e7\u00e3o\u00a0afirma que uma propriedade mensur\u00e1vel espec\u00edfica de um sistema f\u00edsico isolado n\u00e3o muda \u00e0 medida que o sistema evolui com &#8230; <a title=\"O que \u00e9 a Lei de Conserva\u00e7\u00e3o &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-a-lei-de-conservacao-definicao\/\" aria-label=\"More on O que \u00e9 a Lei de Conserva\u00e7\u00e3o &#8211; Defini\u00e7\u00e3o\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 a Lei de Conserva\u00e7\u00e3o - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Leis de Conserva\u00e7\u00e3o. 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