{"id":19346,"date":"2021-01-12T07:12:00","date_gmt":"2021-01-12T07:12:00","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=19346"},"modified":"2024-08-26T15:46:25","modified_gmt":"2024-08-26T08:46:25","slug":"dien-tro-cua-kim-loai-phu-thuoc-vao-nhiet-do-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=19346","title":{"rendered":"\u0110i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"

Ti\u1ebfp n\u1ed1i c\u00e1c b\u00e0i vi\u1ebft v\u1ec1 \u0111i\u1ec7n tr\u1edf, trong b\u00e0i vi\u1ebft ng\u00e0y h\u00f4m nay H\u1ecdc vi\u1ec7n iT.vn s\u1ebd chia s\u1ebb v\u1ec1 \u0111i\u1ec7n tr\u1edf ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/p>\n

\"\u0110i\u1ec7n
<\/span> \u0110i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/figcaption><\/figure>\n

\u0110i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/strong><\/h2>\n

Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng, c\u00e1c ion kim lo\u1ea1i \u1edf n\u00fat m\u1ea1ng tinh th\u1ec3 dao \u0111\u1ed9ng m\u1ea1nh. Do v\u1eady, \u0111\u1ed9 m\u1ea5t tr\u1eadt t\u1ef1 c\u1ee7a m\u1ea1ng tinh th\u1ec3 kim lo\u1ea1i gia t\u0103ng. T\u1eeb \u0111\u00f3 l\u00e0m t\u0103ng s\u1ef1 c\u1ea3n tr\u1edf chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c electron t\u1ef1 do.\u00a0<\/span><\/p>\n

Cho n\u00ean ta r\u00fat ra k\u1ebft lu\u1eadn: Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng th\u00ec \u0111i\u1ec7n tr\u1edf su\u1ea5t c\u1ee7a kim lo\u1ea1i t\u0103ng, \u0111i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i t\u0103ng<\/strong>.<\/span><\/p>\n

\"\u0110i\u1ec7n
\u0110i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9<\/figcaption><\/figure>\n

M\u1ee9c \u0111\u1ed9 ph\u1ee5 thu\u1ed9c c\u1ee7a \u0111i\u1ec7n tr\u1edf v\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u00f2n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c:<\/span><\/p>\n

R = R0<\/sub> [1 + \u03b1 (T – T0<\/sub>)]<\/strong><\/span><\/p>\n

Trong \u0111\u00f3:<\/span><\/p>\n

R0<\/sub><\/strong> v\u00e0 T0<\/sub><\/strong> l\u1ea7n l\u01b0\u1ee3t l\u00e0 \u0111i\u1ec7n tr\u1edf v\u00e0 nhi\u1ec7t \u0111\u1ed9 ban \u0111\u1ea7u.<\/span><\/p>\n

R<\/strong> v\u00e0 T<\/strong> l\u1ea7n l\u01b0\u1ee3t l\u00e0 \u0111i\u1ec7n tr\u1edf v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u01b0\u01a1ng \u1ee9ng.<\/span><\/p>\n

\u03b1<\/strong> l\u00e0 h\u1eb1ng s\u1ed1.<\/span><\/p>\n

V\u00ed d\u1ee5:<\/strong> M\u1ed9t d\u00e2y \u0111\u1ed3ng c\u00f3 \u0111i\u1ec7n tr\u1edf R1<\/sub> = 2 \u03a9 \u1edf 20o<\/sup>C. Sau m\u1ed9t th\u1eddi gian c\u00f3 d\u00f2ng \u0111i\u1ec7n \u0111i qua, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a d\u00e2y \u0111\u1ed3ng l\u00e0 74o<\/sup>C. T\u00ednh \u0111i\u1ec7n tr\u1edf R2<\/sub> c\u1ee7a d\u00e2y \u0111\u1ed3ng \u1edf 74o<\/sup>C. H\u1ec7 s\u1ed1 nhi\u1ec7t \u0111i\u1ec7n tr\u1edf c\u1ee7a \u0111\u1ed3ng \u03b1 = 0,004 K-1<\/sup>.<\/span><\/p>\n

Tr\u1ea3 l\u1eddi: \u0110i\u1ec7n tr\u1edf R2<\/sub> c\u1ee7a d\u00e2y \u0111\u1ed3ng \u1edf 74o<\/sup>C l\u00e0:<\/span><\/p>\n

R2<\/sub> = R1\u00a0<\/sub>[1 + \u03b1 (T2<\/sub> – T1<\/sub>)] = 2 [1 + 0,004 (74 – 20)] = 2,43 \u03a9.<\/span><\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a H\u1ecdc vi\u1ec7n iT.vn v\u1ec1 \u0111i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o. Hy v\u1ecdng nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y c\u00f3 th\u1ec3 gi\u00fap \u00edch cho b\u1ea1n trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp v\u00e0 l\u00e0m vi\u1ec7c. N\u1ebfu c\u00f3 b\u1ea5t c\u1ee9 th\u1eafc m\u1eafc n\u00e0o th\u00ec h\u00e3y \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn ngay d\u01b0\u1edbi b\u00e0i vi\u1ebft n\u00e0y ho\u1eb7c inbox tr\u1ef1c ti\u1ebfp cho HOCVIENiT.vn \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p t\u1ed1t nh\u1ea5t. Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/span><\/p>\n

C\u00e1c b\u00e0i vi\u1ebft li\u00ean quan:<\/span>
\n\u0110i\u1ec7n tr\u1edf c\u1ee7a d\u00e2y d\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0o?<\/a><\/span><\/p>\n

\u0110i\u1ec7n tr\u1edf su\u1ea5t l\u00e0 g\u00ec? T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c v\u1ec1 \u0111i\u1ec7n tr\u1edf su\u1ea5t<\/a><\/span><\/p>\n

T\u1ed5ng h\u1ee3p gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf<\/a><\/span><\/p>\n

M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:
\n<\/i>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT
\n<\/strong>MST: 0108733789
\n<\/strong>Hotline: 0981 223 001
\n<\/strong>Facebook:<\/strong>\u00a0www.fb.com\/hocvienit<\/a>
\n\u0110\u0103ng k\u00fd k\u00eanh Youtube \u0111\u1ec3 theo d\u00f5i c\u00e1c b\u00e0i h\u1ecdc c\u1ee7a Hu\u1ea5n luy\u1ec7n vi\u00ean t\u1ed1t nh\u1ea5t:<\/strong>\u00a0http:\/\/bit.ly\/Youtube_HOCVIENiT<\/a>
\nH\u1ec7 th\u1ed1ng c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:\u00a0<\/b>https:\/\/hocvienit.vn\/lien-he\/<\/a>
\nH\u1ecdc vi\u1ec7n IT.vn \u2013 Truy\u1ec1n ngh\u1ec1 th\u1ef1c t\u1ebf c\u00f9ng b\u1ea1n \u0111\u1ebfn th\u00e0nh c\u00f4ng!\u00a0<\/i><\/strong><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Ti\u1ebfp n\u1ed1i c\u00e1c b\u00e0i vi\u1ebft v\u1ec1 \u0111i\u1ec7n tr\u1edf, trong b\u00e0i vi\u1ebft ng\u00e0y h\u00f4m nay H\u1ecdc vi\u1ec7n iT.vn s\u1ebd chia s\u1ebb v\u1ec1 \u0111i\u1ec7n tr\u1edf ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n","protected":false},"author":95,"featured_media":19348,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[734],"tags":[245],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/19346"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19346"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/19346\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/19348"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}