Tr\u00ean c\u00e1c s\u00e2n b\u00f3ng \u0111\u00e1, ch\u00fang ta th\u01b0\u1eddng th\u1ea5y h\u00ecnh \u1ea3nh m\u1ed9t v\u1eadn \u0111\u1ed9ng vi\u00ean \u0111ang ch\u1ea1y v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh b\u1ecb \u0111\u1ed1i ph\u01b0\u01a1ng ch\u00e8n ng\u00e3 v\u00e0 b\u1ecb th\u01b0\u01a1ng. Nh\u00e2n vi\u00ean y t\u1ebf c\u1ee7a \u0111\u1ed9i b\u00f3ng \u0111\u1ebfn b\u00ean c\u1ea1nh c\u1ea7u th\u1ee7 b\u1ecb th\u01b0\u01a1ng, sau khi ki\u1ec3m tra, nh\u00e2n vi\u00ean y t\u1ebf r\u00fat t\u1eeb t\u00fai c\u1ee9u th\u01b0\u01a1ng m\u1ed9t b\u00ecnh thu\u1ed1c n\u01b0\u1edbc phun v\u00e0o ch\u1ed7 v\u1ebft th\u01b0\u01a1ng, m\u1ed9t l\u00fac sau c\u1ea7u th\u1ee7 b\u1ecb th\u01b0\u01a1ng \u0111\u1ee9ng d\u1eady ti\u1ebfp t\u1ee5c thi \u0111\u1ea5u.<\/p>\n\n\n\n
Ch\u1eafc b\u1ea1n s\u1ebd \u0111\u1eb7t ra c\u00e2u h\u1ecfi nh\u00e2n vi\u00ean y t\u1ebf \u0111\u00e3 phun v\u00e0o ch\u1ed7 b\u1ecb th\u01b0\u01a1ng ch\u1ea5t g\u00ec m\u00e0 c\u00f3 hi\u1ec7u qu\u1ea3 th\u1ea7n k\u1ef3 nh\u01b0 v\u1eady?<\/p>\n\n\n\n
Khi c\u1ea7u th\u1ee7 b\u1ecb th\u01b0\u01a1ng, ch\u1ed7 b\u1ecb th\u01b0\u01a1ng s\u1ebd r\u1ea5t \u0111au \u0111\u1edbn, c\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 l\u00e0m l\u1ea1nh c\u1ee5c b\u1ed9 khi\u1ebfn cho c\u01a1 b\u1eafp m\u1ea5t \u0111i c\u1ea3m gi\u00e1c \u0111au. Ng\u01b0\u1eddi c\u00e1n b\u1ed9 y t\u1ebf \u0111\u00e3 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p l\u00e0m l\u1ea1nh c\u1ee5c b\u1ed9 b\u1eb1ng c\u00e1ch phun ch\u1ea5t l\u00e0m l\u1ea1nh t\u1ee9c th\u1eddi tr\u00ean ch\u1ed7 b\u1ecb th\u01b0\u01a1ng: ch\u1ea5t l\u00e0m l\u1ea1nh \u1edf \u0111\u00e2y l\u00e0 clorua etyl hay c\u00f2n g\u1ecdi l\u00e0 cloetan.<\/p>\n\n\n\n
Clorua etyl l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 c\u00f3 nhi\u1ec7t \u0111\u1ed9 s\u00f4i th\u1ea5p l\u00e0 12,3\u00b0C. \u1ede nhi\u1ec7t \u0111\u1ed9 trong nh\u00e0, khi t\u0103ng \u00e1p su\u1ea5t, n\u00f3 s\u1ebd bi\u1ebfn th\u00e0nh ch\u1ea5t l\u1ecfng. Khi phun cloetan l\u00ean ch\u1ed7 b\u1ecb th\u01b0\u01a1ng, c\u00e1c gi\u1ecdt cloetan khi ti\u1ebfp x\u00fac v\u1edbi da, nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 l\u00e0m cloetan s\u00f4i l\u00ean v\u00e0 b\u1ed1c h\u01a1i r\u1ea5t nhanh. Qu\u00e1 tr\u00ecnh bay h\u01a1i x\u1ea3y ra r\u1ea5t nhanh h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn l\u00e0m cho da b\u1ecb l\u1ea1nh \u0111\u00f4ng c\u1ee5c b\u1ed9 v\u00e0 t\u00ea c\u1ee9ng. V\u00ec v\u1eady th\u1ea7n kinh c\u1ea3m gi\u00e1c kh\u00f4ng truy\u1ec1n \u0111\u01b0\u1ee3c c\u01a1n \u0111au l\u00ean \u0111\u1ea1i n\u00e3o. Nh\u1edd \u0111\u00f3 ng\u01b0\u1eddi ta kh\u00f4ng c\u00f3 c\u1ea3m gi\u00e1c \u0111au. \u0110\u1ed3ng th\u1eddi do s\u1ef1 l\u1ea1nh \u0111\u00f4ng c\u1ee5c b\u1ed9 khi\u1ebfn cho c\u00e1c huy\u1ebft qu\u1ea3n ch\u1ed7 b\u1ecb th\u01b0\u01a1ng b\u1ecb co l\u1ea1i, l\u00e0m ch\u1ed7 b\u1ecb th\u01b0\u01a1ng ng\u1eebng ch\u1ea3y m\u00e1u. V\u00ec l\u1ea1nh \u0111\u00f4ng c\u1ee5c b\u1ed9, n\u00ean \u1edf ch\u1ed7 b\u1ecb th\u01b0\u01a1ng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u01a1 n\u0103ng c\u1ea3m gi\u00e1c trong to\u00e0n th\u00e2n. N\u1ebfu ch\u1ed7 b\u1ecb th\u01b0\u01a1ng kh\u00f4ng b\u1ecb t\u1ed5n th\u01b0\u01a1ng \u0111\u1ebfn x\u01b0\u01a1ng th\u00ec qua vi\u1ec7c x\u1eed l\u00fd b\u1eb1ng cloetan, c\u1ea7u th\u1ee7 b\u1ecb th\u01b0\u01a1ng c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c thi \u0111\u1ea5u.<\/p>\n\n\n\n
C\u00f3 \u0111i\u1ec1u c\u1ea7n n\u00eau l\u00ean r\u1eb1ng, d\u00f9ng cloetan ch\u1ec9 c\u00f3 th\u1ec3 t\u1ea1m th\u1eddi l\u00e0m cho v\u1eadn \u0111\u1ed9ng vi\u00ean kh\u00f4ng c\u00f3 c\u1ea3m gi\u00e1c \u0111au m\u00e0 kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng ch\u1eefa tr\u1ecb. Sau khi tr\u1eadn \u0111\u1ea5u k\u1ebft th\u00fac c\u1ea7n ph\u1ea3i ti\u1ebfp t\u1ee5c ch\u1eefa tr\u1ecb, ngh\u1ec9 ng\u01a1i m\u1edbi c\u00f3 th\u1ec3 tr\u1ecb l\u00e0nh v\u1ebft th\u01b0\u01a1ng, kh\u00f4i ph\u1ee5c \u0111\u01b0\u1ee3c s\u1ee9c l\u1ef1c.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Cloetan; G\u00e2y t\u00ea.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Tr\u00ean c\u00e1c s\u00e2n b\u00f3ng \u0111\u00e1, ch\u00fang ta th\u01b0\u1eddng th\u1ea5y h\u00ecnh \u1ea3nh m\u1ed9t v\u1eadn \u0111\u1ed9ng vi\u00ean \u0111ang ch\u1ea1y v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh b\u1ecb \u0111\u1ed1i ph\u01b0\u01a1ng ch\u00e8n ng\u00e3 v\u00e0 b\u1ecb th\u01b0\u01a1ng. Nh\u00e2n vi\u00ean y t\u1ebf c\u1ee7a \u0111\u1ed9i b\u00f3ng \u0111\u1ebfn b\u00ean c\u1ea1nh c\u1ea7u th\u1ee7 b\u1ecb th\u01b0\u01a1ng, sau khi ki\u1ec3m tra, nh\u00e2n vi\u00ean y t\u1ebf r\u00fat t\u1eeb t\u00fai c\u1ee9u […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-8166","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8166"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8166\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}