{"id":683899,"date":"2024-10-09T15:12:52","date_gmt":"2024-10-09T14:12:52","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=683899"},"modified":"2024-10-09T15:12:52","modified_gmt":"2024-10-09T14:12:52","slug":"5-loai-qua-trinh-nhiet-dong-hoc-dang-nhiet","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/5-loai-qua-trinh-nhiet-dong-hoc-dang-nhiet\/","title":{"rendered":"5 Lo\u1ea1i Qu\u00e1 Tr\u00ecnh Nhi\u1ec7t \u0110\u1ed9ng H\u1ecdc \u0110\u1eb3ng Nhi\u1ec7t"},"content":{"rendered":"

5 lo\u1ea1i qu\u00e1 tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc \u0111\u1eb3ng nhi\u1ec7t: T\u00ecm hi\u1ec3u c\u00e1c qu\u00e1 tr\u00ecnh \u0111\u1eb3ng nhi\u1ec7t trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc, \u1ee9ng d\u1ee5ng v\u00e0 \u00fd ngh\u0129a c\u1ee7a ch\u00fang trong k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n

\"5<\/p>\n

5 Lo\u1ea1i Qu\u00e1 Tr\u00ecnh Nhi\u1ec7t \u0110\u1ed9ng H\u1ecdc \u0110\u1eb3ng Nhi\u1ec7t<\/h2>\n

Trong ng\u00e0nh k\u1ef9 thu\u1eadt nhi\u1ec7t, qu\u00e1 tr\u00ecnh \u0111\u1eb3ng nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 n\u0103m lo\u1ea1i qu\u00e1 tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc \u0111\u1eb3ng nhi\u1ec7t ch\u1ee7 y\u1ebfu:<\/p>\n

    \n
  1. \n Qu\u00e1 Tr\u00ecnh \u0110\u1eb3ng Nhi\u1ec7t C\u00f3 \u00c1p Su\u1ea5t Kh\u00f4ng \u0110\u1ed5i:<\/strong><\/p>\n

    Trong qu\u00e1 tr\u00ecnh n\u00e0y, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c gi\u1eef kh\u00f4ng \u0111\u1ed5i trong su\u1ed1t qu\u00e1 tr\u00ecnh. \u00c1p su\u1ea5t b\u00ean trong h\u1ec7 th\u1ed1ng kh\u00f4ng thay \u0111\u1ed5i, v\u00e0 c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0:<\/p>\n

    \\( PV = nRT \\)<\/p>\n

    trong \u0111\u00f3, \\( P \\) l\u00e0 \u00e1p su\u1ea5t, \\( V \\) l\u00e0 th\u1ec3 t\u00edch, \\( n \\) l\u00e0 s\u1ed1 mol, \\( R \\) l\u00e0 h\u1eb1ng s\u1ed1 kh\u00ed l\u00fd t\u01b0\u1edfng v\u00e0 \\( T \\) l\u00e0 nhi\u1ec7t \u0111\u1ed9.<\/p>\n<\/li>\n

  2. \n Qu\u00e1 Tr\u00ecnh \u0110\u1eb3ng Nhi\u1ec7t C\u00f3 Th\u1ec3 T\u00edch Kh\u00f4ng \u0110\u1ed5i:<\/strong><\/p>\n

    Trong qu\u00e1 tr\u00ecnh n\u00e0y, th\u1ec3 t\u00edch c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c gi\u1eef kh\u00f4ng \u0111\u1ed5i. C\u00f4ng th\u1ee9c cho qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0:<\/p>\n

    \\( P \\propto T \\)<\/p>\n

    \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng, \u00e1p su\u1ea5t c\u0169ng s\u1ebd t\u0103ng theo t\u1ef7 l\u1ec7 thu\u1eadn.<\/p>\n<\/li>\n

  3. \n Qu\u00e1 Tr\u00ecnh \u0110\u1eb3ng \u00c1p (Isobaric Process):<\/strong><\/p>\n

    Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn qu\u00e1 tr\u00ecnh l\u00fd t\u01b0\u1edfng kh\u00ed trong \u0111\u00f3 \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c gi\u1eef kh\u00f4ng \u0111\u1ed5i. Nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u1ec3 t\u00edch thay \u0111\u1ed5i nh\u01b0ng m\u1ed1i quan h\u1ec7 gi\u1eefa th\u1ec3 t\u00edch v\u00e0 \u00e1p su\u1ea5t v\u1eabn tu\u00e2n theo ph\u01b0\u01a1ng tr\u00ecnh kh\u00ed l\u00fd t\u01b0\u1edfng:<\/p>\n

    \\( P = kT \\)<\/p>\n

    v\u1edbi \\( k \\) l\u00e0 h\u1eb1ng s\u1ed1.<\/p>\n<\/li>\n

  4. \n Qu\u00e1 Tr\u00ecnh \u0110\u1eb3ng Th\u1ec3 (Isochoric Process):<\/strong><\/p>\n

    Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra khi th\u1ec3 t\u00edch c\u1ee7a h\u1ec7 th\u1ed1ng kh\u00f4ng \u0111\u1ed5i trong su\u1ed1t qu\u00e1 tr\u00ecnh. Ph\u01b0\u01a1ng tr\u00ecnh c\u01a1 b\u1ea3n c\u1ee7a qu\u00e1 tr\u00ecnh \u0111\u1eb3ng th\u1ec3 l\u00e0:<\/p>\n

    \\( \\frac{P}{T} = \\text{const} \\)<\/p>\n<\/li>\n

  5. \n Qu\u00e1 Tr\u00ecnh \u0110\u1eb3ng Nhi\u1ec7t Trong M\u00e1y L\u1ea1nh (Isothermal Process in Refrigerators):<\/strong><\/p>\n

    K\u1ef9 thu\u1eadt \u0111\u1eb3ng nhi\u1ec7t \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed. Trong qu\u00e1 tr\u00ecnh n\u00e0y, h\u1ec7 th\u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh \u0111\u1ec3 gi\u1eef nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i:<\/p>\n

    \\( Q = W \\)<\/p>\n

    trong \u0111\u00f3, \\( Q \\) l\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng, v\u00e0 \\( W \\) l\u00e0 c\u00f4ng vi\u1ec7c \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi ho\u1eb7c tr\u00ean h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n<\/ol>\n

    Qu\u00e1 tr\u00ecnh \u0111\u1eb3ng nhi\u1ec7t l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng tr\u00ecnh c\u01a1 b\u1ea3n c\u1ee7a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc v\u00e0 c\u00f3 nh\u1eefng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. Vi\u1ec7c n\u1eafm v\u1eefng c\u00e1c qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t v\u00e0 n\u0103ng l\u01b0\u1ee3ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

    5 lo\u1ea1i qu\u00e1 tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc \u0111\u1eb3ng nhi\u1ec7t: T\u00ecm hi\u1ec3u c\u00e1c qu\u00e1 tr\u00ecnh \u0111\u1eb3ng nhi\u1ec7t trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc, \u1ee9ng d\u1ee5ng v\u00e0 \u00fd ngh\u0129a c\u1ee7a ch\u00fang trong k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/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":"\n5 Lo\u1ea1i Qu\u00e1 Tr\u00ecnh Nhi\u1ec7t \u0110\u1ed9ng H\u1ecdc \u0110\u1eb3ng Nhi\u1ec7t<\/title>\n<meta name=\"description\" content=\"5 lo\u1ea1i qu\u00e1 tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc \u0111\u1eb3ng nhi\u1ec7t: T\u00ecm hi\u1ec3u c\u00e1c qu\u00e1 tr\u00ecnh \u0111\u1eb3ng nhi\u1ec7t trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc, \u1ee9ng d\u1ee5ng v\u00e0 \u00fd ngh\u0129a c\u1ee7a ch\u00fang trong k\u1ef9 thu\u1eadt nhi\u1ec7t.\" \/>\n<meta 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