B\u0103ng kh\u00f4 c\u0169ng l\u00e0 b\u0103ng, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ee9 b\u0103ng th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n
B\u0103ng kh\u00f4 v\u00e0 b\u0103ng th\u00f4ng th\u01b0\u1eddng c\u00f3 g\u00ec kh\u00e1c nhau nh\u1ec9?<\/p>\n\n\n\n
N\u00f3i b\u0103ng kh\u00f4 l\u00e0 b\u0103ng, v\u00ec n\u00f3 c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt ch\u1ea5t \u1edf th\u1ec3 r\u1eafn c\u00f3 h\u00ecnh d\u1ea1ng, c\u00f3 k\u00edch th\u01b0\u1edbc. Song, b\u0103ng th\u00f4ng th\u01b0\u1eddng l\u00e0 v\u1eadt ch\u1ea5t th\u1ec3 r\u1eafn h\u00ecnh th\u00e0nh b\u1edfi n\u01b0\u1edbc \u1edf \u00e1p su\u1ea5t 101,3 kPa (1 atm) v\u00e0 0\u00b0C; c\u00f2n b\u0103ng kh\u00f4 h\u00ecnh th\u00e0nh b\u1edfi cacbon \u0111ioxit \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 \u1edf \u201378\u00b0C. Lo\u1ea1i b\u0103ng kh\u00f4 h\u00ecnh th\u00e0nh t\u1eeb cacbon \u0111ioxit n\u00e0y c\u00f3 m\u1eadt \u0111\u1ed9 l\u1edbn h\u01a1n b\u0103ng n\u00f3i chung, v\u00ec v\u1eady b\u0103ng kh\u00f4 cho v\u00e0o n\u01b0\u1edbc s\u1ebd ch\u00ecm xu\u1ed1ng, c\u00f2n nh\u1eefng c\u1ee5c b\u0103ng th\u00f4ng th\u01b0\u1eddng th\u00ec n\u1ed5i tr\u00ean m\u1eb7t n\u01b0\u1edbc.<\/p>\n\n\n\n
M\u1ed9t \u0111\u1eb7c tr\u01b0ng kh\u00e1c c\u1ee7a b\u0103ng kh\u00f4 l\u00e0 “kh\u00f4”. Trong b\u1ea5t k\u00ec \u0111i\u1ec1u ki\u1ec7n n\u00e0o, b\u0103ng kh\u00f4 c\u0169ng \u0111\u1ec1u kh\u00f4ng \u1ea9m \u01b0\u1edbt, v\u00e0 c\u0169ng s\u1ebd kh\u00f4ng l\u00e0m \u1ea9m \u01b0\u1edbt c\u00e1c v\u1eadt th\u1ec3 xung quanh. \u0110\u00f3 l\u00e0 v\u00ec m\u1ed9t khi b\u0103ng kh\u00f4 b\u1ecb n\u00f3ng l\u00ean th\u00ec s\u1ebd tr\u1ef1c ti\u1ebfp bi\u1ebfn th\u00e0nh cacbon \u0111ioxit \u1edf th\u1ec3 kh\u00ed, ch\u1ee9 kh\u00f4ng tr\u1ea3i qua giai \u0111o\u1ea1n th\u1ec3 l\u1ecfng. C\u00f2n b\u0103ng th\u00f4ng th\u01b0\u1eddng khi b\u1ecb n\u00f3ng l\u00ean s\u1ebd “to\u00e1t m\u1ed3 h\u00f4i” tr\u01b0\u1edbc \u0111\u00e3, r\u1ed3i m\u1edbi \u0111\u1ebfn to\u00e0n th\u00e2n \u1ea9m \u01b0\u1edbt, sau c\u0169ng tan ch\u1ea3y to\u00e0n b\u1ed9 th\u00e0nh n\u01b0\u1edbc \u1edf th\u1ec3 l\u1ecfng. Ch\u1ec9 khi \u0111un n\u00f3ng n\u01b0\u1edbc \u1edf th\u1ec3 l\u1ecfng \u0111\u1ebfn \u0111i\u1ec3m s\u00f4i (100\u00b0C) tr\u1edf l\u00ean, b\u0103ng th\u00f4ng th\u01b0\u1eddng m\u1edbi chuy\u1ec3n bi\u1ebfn th\u00e0nh h\u01a1i n\u01b0\u1edbc \u1edf th\u1ec3 kh\u00ed.<\/p>\n\n\n\n
B\u0103ng kh\u00f4 l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt ch\u1ea5t l\u00e0m l\u1ea1nh c\u00f3 c\u00f4ng d\u1ee5ng r\u1ed9ng r\u00e3i. D\u00f9ng b\u0103ng kh\u00f4 \u0111\u1ec3 b\u1ea3o qu\u1ea3n l\u1ea1nh th\u1ef1c ph\u1ea9m, ch\u1eb3ng nh\u1eefng kh\u00f4ng l\u00e0m \u1ea9m \u01b0\u1edbt th\u1ef1c ph\u1ea9m m\u00e0 cacbon \u0111ioxit th\u1ec3 kh\u00ed do b\u0103ng kh\u00f4 h\u00ecnh th\u00e0nh l\u00ean c\u00f2n c\u00f3 th\u1ec3 \u1ee9c ch\u1ebf s\u1ef1 sinh tr\u01b0\u1edfng c\u1ee7a vi sinh v\u1eadt; \u0111\u1ea1t \u0111\u1ebfn m\u1ee5c \u0111\u00edch l\u00e0m cho th\u1ef1c ph\u1ea9m t\u01b0\u01a1i nguy\u00ean. Ch\u1ee9c n\u0103ng l\u00e0m l\u1ea1nh c\u1ee7a b\u0103ng kh\u00f4 c\u00f2n l\u00e0m cho n\u00f3 \u0111\u01b0\u1ee3c li\u1ec7t v\u00e0o lo\u1ea1i nguy\u00ean li\u1ec7u d\u1eadp t\u1eaft l\u1eeda c\u00f3 hi\u1ec7u qu\u1ea3, nh\u1ea5t l\u00e0 khi n\u00e9m n\u00f3 v\u00e0o ch\u1ea5t d\u1ea7u m\u1ee1 \u0111ang ch\u00e1y, m\u1ed9t l\u01b0\u1ee3ng l\u1edbn cacbon \u0111ioxit do b\u0103ng kh\u00f4 gi\u1ea3i ph\u00f3ng ra s\u1ebd c\u1eaft \u0111\u1ee9t ho\u1eb7c b\u1ecbt k\u00edn con \u0111\u01b0\u1eddng c\u1ee7a oxi r\u1ea5t c\u1ea7n cho s\u1ef1 ch\u00e1y, c\u00f3 th\u1ec3 nhanh ch\u00f3ng d\u1eadp t\u1eaft \u0111\u01b0\u1ee3c l\u1eeda. Trong qu\u00e1 tr\u00ecnh l\u00e0m m\u01b0a nh\u00e2n t\u1ea1o, trong vi\u1ec7c t\u1ea1o d\u1ef1ng c\u1ea3nh t\u01b0\u1ee3ng m\u00e2y tr\u1eafng tr\u00ean s\u00e2n kh\u1ea5u y nh\u01b0 th\u1eadt, b\u0103ng kh\u00f4 c\u0169ng gi\u1eef m\u1ed9t vai tr\u00f2 ch\u1ee7 y\u1ebfu trong c\u00e1c c\u00f4ng vi\u1ec7c \u0111\u00f3.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: B\u0103ng; B\u0103ng kh\u00f4; \u0110ioxit cacbon.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
B\u0103ng kh\u00f4 c\u0169ng l\u00e0 b\u0103ng, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ee9 b\u0103ng th\u00f4ng th\u01b0\u1eddng. B\u0103ng kh\u00f4 v\u00e0 b\u0103ng th\u00f4ng th\u01b0\u1eddng c\u00f3 g\u00ec kh\u00e1c nhau nh\u1ec9? N\u00f3i b\u0103ng kh\u00f4 l\u00e0 b\u0103ng, v\u00ec n\u00f3 c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt ch\u1ea5t \u1edf th\u1ec3 r\u1eafn c\u00f3 h\u00ecnh d\u1ea1ng, c\u00f3 k\u00edch th\u01b0\u1edbc. Song, b\u0103ng th\u00f4ng th\u01b0\u1eddng l\u00e0 v\u1eadt ch\u1ea5t th\u1ec3 […]<\/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":[15,7],"tags":[],"class_list":["post-5688","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5688","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=5688"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5688\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}