{"id":673469,"date":"2024-09-25T02:14:02","date_gmt":"2024-09-25T01:14:02","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=673469"},"modified":"2024-09-25T02:14:02","modified_gmt":"2024-09-25T01:14:02","slug":"su-anh-huong-cua-entropy-len-he-thong-nhiet","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/su-anh-huong-cua-entropy-len-he-thong-nhiet\/","title":{"rendered":"S\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a entropy l\u00ean h\u1ec7 th\u1ed1ng nhi\u1ec7t"},"content":{"rendered":"<p class=\"sidekick\">S\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a entropy l\u00ean h\u1ec7 th\u1ed1ng nhi\u1ec7t: Gi\u1ea3i th\u00edch c\u00e1ch entropy t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t n\u0103ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/su_anh_huong_cua_entropy_len_he_thong_nhiet.png\" alt=\"S\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a entropy l\u00ean h\u1ec7 th\u1ed1ng nhi\u1ec7t\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>S\u1ef1 \u1ea2nh H\u01b0\u1edfng c\u1ee7a Entropy l\u00ean H\u1ec7 Th\u1ed1ng Nhi\u1ec7t<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, entropy l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng v\u00e0 c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a entropy, ch\u00fang ta c\u1ea7n n\u1eafm v\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n c\u1ee7a n\u00f3.<\/p>\n<h2>Kh\u00e1i Ni\u1ec7m V\u1ec1 Entropy<\/h2>\n<p>Entropy, th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 S, l\u00e0 m\u1ed9t th\u01b0\u1edbc \u0111o m\u1ee9c \u0111\u1ed9 h\u1ed7n lo\u1ea1n ho\u1eb7c kh\u00f4ng tr\u1eadt t\u1ef1 trong m\u1ed9t h\u1ec7 th\u1ed1ng. Trong nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc, entropy m\u00f4 t\u1ea3 s\u1ef1 ph\u00e2n b\u1ed1 n\u0103ng l\u01b0\u1ee3ng trong h\u1ec7 th\u1ed1ng v\u00e0 xu h\u01b0\u1edbng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c.<\/p>\n<h2>Entropy v\u00e0 Nguy\u00ean L\u00fd Th\u1ee9 Hai c\u1ee7a Nhi\u1ec7t \u0110\u1ed9ng L\u1ef1c H\u1ecdc<\/h2>\n<p>Nguy\u00ean l\u00fd th\u1ee9 hai c\u1ee7a nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc ph\u00e1t bi\u1ec3u r\u1eb1ng t\u1ed5ng entropy c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng k\u00edn s\u1ebd kh\u00f4ng bao gi\u1edd gi\u1ea3m, n\u00f3 ch\u1ec9 c\u00f3 th\u1ec3 gi\u1eef nguy\u00ean ho\u1eb7c t\u0103ng. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 xu h\u01b0\u1edbng t\u1ef1 nhi\u00ean c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng l\u00e0 d\u1ea7n tr\u1edf n\u00ean h\u1ed7n lo\u1ea1n h\u01a1n theo th\u1eddi gian.<\/p>\n<h2>\u1ea2nh H\u01b0\u1edfng c\u1ee7a Entropy l\u00ean H\u1ec7 Th\u1ed1ng Nhi\u1ec7t<\/h2>\n<p>Entropy c\u00f3 t\u00e1c \u0111\u1ed9ng s\u00e2u s\u1eafc \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t b\u1edfi n\u00f3 li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 c\u00e1c \u0111\u1ecbnh lu\u1eadt nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ea3nh h\u01b0\u1edfng ch\u00ednh:<\/p>\n<ul>\n<li><strong>Hi\u1ec7u Su\u1ea5t Nhi\u1ec7t:<\/strong> Trong c\u00e1c chu tr\u00ecnh nhi\u1ec7t nh\u01b0 chu tr\u00ecnh Carnot, hi\u1ec7u su\u1ea5t nhi\u1ec7t th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi s\u1ef1 gia t\u0103ng c\u1ee7a entropy. M\u1ed9t chu tr\u00ecnh c\u00e0ng \u00edt t\u1ea1o ra entropy, hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 c\u00e0ng cao.<\/li>\n<li><strong>Tr\u1ea1ng Th\u00e1i C\u00e2n B\u1eb1ng:<\/strong> C\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t s\u1ebd ti\u1ebfn t\u1edbi tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c, m\u1ed9t tr\u1ea1ng th\u00e1i m\u00e0 entropy c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ea1t gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t. Trong tr\u1ea1ng th\u00e1i n\u00e0y, n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 \u0111\u1ec1u v\u00e0 kh\u00f4ng c\u00f3 d\u00f2ng nhi\u1ec7t t\u1ef1 ph\u00e1t t\u1eeb n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao sang n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/li>\n<li><strong>Qu\u00e1 Tr\u00ecnh Kh\u00f4ng Thu\u1eadn Ngh\u1ecbch:<\/strong> M\u1ecdi qu\u00e1 tr\u00ecnh th\u1ef1c t\u1ebf \u0111\u1ec1u t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng entropy, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c m\u00e1y m\u00f3c v\u00e0 thi\u1ebft b\u1ecb nhi\u1ec7t. V\u00ed d\u1ee5, khi m\u1ed9t kh\u00ed n\u00e9n b\u1ecb gi\u1ea3i ph\u00f3ng m\u1ed9t c\u00e1ch kh\u00f4ng ki\u1ec3m so\u00e1t, entropy c\u1ee7a h\u1ec7 th\u1ed1ng s\u1ebd t\u0103ng l\u00ean do s\u1ef1 h\u1ed7n lo\u1ea1n gia t\u0103ng.<\/li>\n<\/ul>\n<h2>C\u00f4ng Th\u1ee9c T\u00ednh Entropy<\/h2>\n<p>C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 t\u00ednh s\u1ef1 thay \u0111\u1ed5i c\u1ee7a entropy (\\(\\Delta S\\)) trong m\u1ed9t qu\u00e1 tr\u00ecnh nhi\u1ec7t l\u00e0:<\/p>\n<p>\\(\\Delta S = \\int \\frac{dQ}{T}\\)<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>\\(dQ\\) l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t trao \u0111\u1ed5i.<\/li>\n<li>\\(T\\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 tuy\u1ec7t \u0111\u1ed1i t\u1ea1i \u0111i\u1ec3m m\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t \\(dQ\\) \u0111\u01b0\u1ee3c truy\u1ec1n.<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Entropy l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t v\u00e0 h\u00e0nh vi c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t. S\u1ef1 t\u0103ng l\u00ean c\u1ee7a entropy trong qu\u00e1 tr\u00ecnh kh\u00f4ng thu\u1eadn ngh\u1ecbch l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb, \u0111\u1ed3ng th\u1eddi \u0111\u1ecbnh ngh\u0129a b\u1ea3n ch\u1ea5t c\u1ee7a c\u00e1c qu\u00e1 tr\u00ecnh v\u00e0 s\u1ef1 chuy\u1ec3n d\u1ecbch n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t. Hi\u1ec3u r\u00f5 v\u1ec1 entropy gi\u00fap c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 khoa h\u1ecdc c\u1ea3i ti\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t, n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a entropy l\u00ean h\u1ec7 th\u1ed1ng nhi\u1ec7t: Gi\u1ea3i th\u00edch c\u00e1ch entropy t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t n\u0103ng.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u1ef1 \u1ea3nh 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