{"id":8102,"date":"2024-08-04T22:33:40","date_gmt":"2024-08-05T01:33:40","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=8102"},"modified":"2024-09-09T19:30:40","modified_gmt":"2024-09-09T22:30:40","slug":"questao-123-enem-ppl-2022","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-123-enem-ppl-2022\/","title":{"rendered":"Quest\u00e3o 123 \u2013 ENEM PPL 2022"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Os airbags de seguran\u00e7a dos autom\u00f3veis s\u00e3o acionados com o impacto, que envia um sinal el\u00e9trico para o dispositivo e inicia a <strong>rea\u00e7\u00e3o explosiva do trinitreto de s\u00f3dio (NaN<sub>3<\/sub>), produzindo s\u00f3dio met\u00e1lico e nitrog\u00eanio molecular<\/strong>, conforme a equa\u00e7\u00e3o:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"291\" height=\"51\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca.png\" alt=\"\" class=\"wp-image-11254 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 291px; --smush-placeholder-aspect-ratio: 291\/51;\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O g\u00e1s produzido tem fun\u00e7\u00e3o de inflar o airbag. Esse tipo de dispositivo <strong>cont\u00e9m, aproximadamente, 100 g de NaN<sub>3<\/sub>.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"364\" height=\"126\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca-dos.png\" alt=\"\" class=\"wp-image-11255 lazyload\" title=\"\" data-srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca-dos.png 364w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca-dos-300x104.png 300w\" data-sizes=\"(max-width: 364px) 100vw, 364px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 364px; --smush-placeholder-aspect-ratio: 364\/126;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nesse dispositivo, <strong>o volume de g\u00e1s produzido, em litro<\/strong>, \u00e9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A) 4,7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B) 9,4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C) 18,8.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D) 56,5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E) 113,0.<\/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\">Primeiramente, precisamos descobrir a quantidade de mol do N<sub>2<\/sub> produzida a partir de 100 g de NaN<sub>3<\/sub>. De acordo com a estequiometria, considerando que 130 g (2 mol) de NaN<sub>3<\/sub> formam 3 mol de N<sub>2<\/sub> temos que:<\/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<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\"><strong>MASSA DE NAN<sub>3<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MOL DE N<sub>2<\/sub><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">130 g &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; 3 mol<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">100 g &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; x<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>x = 2,31 mol de N<sub>2<\/sub><\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Uma vez obtido o n\u00famero de mol de N<sub>2<\/sub>, basta calcular o volume com a rela\u00e7\u00e3o fornecida pela quest\u00e3o (pV = nRT)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Substituindo os valores e considerando a temperatura em Kelvin, temos que:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"360\" height=\"104\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca-do.png\" alt=\"\" class=\"wp-image-11256 lazyload\" title=\"\" data-srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca-do.png 360w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/Os-airbags-de-seguranca-do-300x87.png 300w\" data-sizes=\"(max-width: 360px) 100vw, 360px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 360px; --smush-placeholder-aspect-ratio: 360\/104;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Alternativa D<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Os airbags de seguran\u00e7a dos autom\u00f3veis s\u00e3o acionados com o impacto, que envia um sinal el\u00e9trico para o dispositivo e inicia a rea\u00e7\u00e3o explosiva do trinitreto de s\u00f3dio (NaN3), produzindo s\u00f3dio met\u00e1lico e nitrog\u00eanio molecular, conforme a equa\u00e7\u00e3o: O g\u00e1s produzido tem fun\u00e7\u00e3o de inflar o airbag. Esse tipo de dispositivo cont\u00e9m, aproximadamente, 100 g [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":11254,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87,101],"tags":[],"area-do-conhecimento":[116,120],"assunto":[],"class_list":["post-8102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-questoes-ppl","category-2022-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\/8102","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=8102"}],"version-history":[{"count":3,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/8102\/revisions"}],"predecessor-version":[{"id":11257,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/8102\/revisions\/11257"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media\/11254"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=8102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=8102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=8102"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=8102"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=8102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}