{"id":8839,"date":"2024-08-06T01:37:13","date_gmt":"2024-08-06T04:37:13","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=8839"},"modified":"2024-09-09T19:28:23","modified_gmt":"2024-09-09T22:28:23","slug":"questao-90-enem-ppl-2016-caderno-9-branco","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-90-enem-ppl-2016-caderno-9-branco\/","title":{"rendered":"Quest\u00e3o 090 \u2013 ENEM PPL 2016 (Caderno 9 \u2013 BRANCO)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A obten\u00e7\u00e3o de energia por meio da fiss\u00e3o nuclear do <sup>235<\/sup>U \u00e9 muito superior quando comparada \u00e0 combust\u00e3o da gasolina. <strong>O calor liberado na fiss\u00e3o do <sup>235<\/sup>U \u00e9 8 \u00d7 10<sup>10<\/sup> J\/g e na combust\u00e3o da gasolina \u00e9 5 \u00d7 10<sup>4<\/sup> J\/g.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A massa de gasolina necess\u00e1ria para obter a mesma energia na fiss\u00e3o de 1 kg de <sup>235<\/sup>U<\/strong> \u00e9 da ordem de<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A) 10<sup>3<\/sup> g.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B) 10<sup>4<\/sup> g.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C) 10<sup>5<\/sup> g.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D) 10<sup>6<\/sup> g.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E) 10<sup>9<\/sup> g.<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size wp-block-paragraph\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O objetivo \u00e9 calcular qual massa de gasolina libera a mesma energia da fiss\u00e3o de 1 kg ur\u00e2nio-235. Sabe-se que a energia liberada durante a fiss\u00e3o \u00e9 de 8 x 10<sup>10<\/sup> J\/g. Portanto, durante a fiss\u00e3o de 1000 g (1 kg) a energia liberada ser\u00e1 de:<\/p>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-2c90304e wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">1 g de ur\u00e2nio-235 &#8212;&#8212;&#8212;&#8212;&#8211; 8 x 10<sup>10<\/sup> J<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1000 g de ur\u00e2nio-235 &#8212;&#8212;&#8212;-x<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>x = 8 x 10<sup>13 <\/sup>J de energia<\/strong><\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se 1 grama de gasolina libera 5 \u00d7 10<sup>4 <\/sup>J, a massa necess\u00e1ria para liberar 8 x 10<sup>13 <\/sup>J de energia \u00e9 dada por:<\/p>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-2c90304e wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">1 g de gasolina &#8212;&#8212;&#8212;&#8211; 5 \u00d7 10<sup>4 <\/sup>J<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">y &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211; 8 x 10<sup>13 <\/sup>J<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>y = 1,6 x 10<sup>9<\/sup> g de gasolina<\/strong><\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A massa de gasolina necess\u00e1ria para obter a mesma energia na fiss\u00e3o de 1 kg de <sup>235<\/sup>U \u00e9 da ordem de 10<sup>9<\/sup> g.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Alternativa E<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A obten\u00e7\u00e3o de energia por meio da fiss\u00e3o nuclear do 235U \u00e9 muito superior quando comparada \u00e0 combust\u00e3o da gasolina. O calor liberado na fiss\u00e3o do 235U \u00e9 8 \u00d7 1010 J\/g e na combust\u00e3o da gasolina \u00e9 5 \u00d7 104 J\/g. A massa de gasolina necess\u00e1ria para obter a mesma energia na fiss\u00e3o de [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87,95],"tags":[],"area-do-conhecimento":[116,120],"assunto":[],"class_list":["post-8839","post","type-post","status-publish","format-standard","hentry","category-questoes-ppl","category-2016-questoes-ppl","area-do-conhecimento-ciencias-da-natureza-e-suas-tecnologias","area-do-conhecimento-quimica"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/8839","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=8839"}],"version-history":[{"count":1,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/8839\/revisions"}],"predecessor-version":[{"id":8840,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/8839\/revisions\/8840"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=8839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=8839"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=8839"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=8839"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=8839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}