{"id":1001,"date":"2023-07-19T17:23:01","date_gmt":"2023-07-19T17:23:01","guid":{"rendered":"https:\/\/chemuza.org\/tr\/sicaklik-fiziksel-mi-yoksa-kimyasal-bir-degisim-midir\/"},"modified":"2023-07-19T17:23:01","modified_gmt":"2023-07-19T17:23:01","slug":"sicaklik-fiziksel-mi-yoksa-kimyasal-bir-degisim-midir","status":"publish","type":"post","link":"https:\/\/chemuza.org\/tr\/sicaklik-fiziksel-mi-yoksa-kimyasal-bir-degisim-midir\/","title":{"rendered":"S\u0131cakl\u0131k fiziksel mi yoksa kimyasal bir de\u011fi\u015fim midir? (ve neden?)"},"content":{"rendered":"<p><strong>S\u0131cakl\u0131k<\/strong> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Physical_change\" target=\"_blank\" rel=\"noopener\"><strong>fiziksel bir de\u011fi\u015fimdir<\/strong><\/a> <strong>\u00e7\u00fcnk\u00fc bir maddenin par\u00e7ac\u0131klar\u0131n\u0131n ortalama kinetik enerjisini \u00f6l\u00e7er ve maddenin kimyasal bile\u015fiminde veya kimli\u011finde herhangi bir de\u011fi\u015fiklik anlam\u0131na gelmez.<\/strong> <strong>Bu, sistemdeki mevcut enerji miktar\u0131na ba\u011fl\u0131 olarak dalgalanabilen, tersine \u00e7evrilebilir bir de\u011fi\u015fikliktir.<\/strong><\/p>\n<p> Asl\u0131nda bu sadece basit bir cevapt\u0131. Ancak bu konu hakk\u0131nda konseptinizi \u00e7ok net hale getirecek bilmeniz gereken birka\u00e7 \u015fey daha var.<\/p>\n<p> O halde do\u011frudan konuya ge\u00e7elim. <\/p>\n<div class=\"inherit-container-width wp-block-group key is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group__inner-container\">\n<h3 class=\"wp-block-heading\"> <strong>Temel \u00c7\u0131kar\u0131mlar: S\u0131cakl\u0131k Fiziksel mi, Kimyasal m\u0131?<\/strong><\/h3>\n<ul>\n<li> S\u0131cakl\u0131k fiziksel bir \u00f6zelliktir \u00e7\u00fcnk\u00fc bir maddenin veya sistemin kimyasal bile\u015fimini de\u011fi\u015ftirmeden \u00f6l\u00e7\u00fclebilen bir \u00f6zelli\u011fini tan\u0131mlar.<\/li>\n<li> S\u0131cakl\u0131k kimyasal bir \u00f6zellik de\u011fildir \u00e7\u00fcnk\u00fc bir maddenin kimyasal bile\u015fimine ba\u011fl\u0131 de\u011fildir.<\/li>\n<li> S\u0131cakl\u0131k, farkl\u0131 tipte termometreler veya s\u0131cakl\u0131k sens\u00f6rleri kullan\u0131larak \u00f6l\u00e7\u00fcl\u00fcr. \u00d6l\u00e7\u00fcm y\u00f6nteminin se\u00e7imi uygulamaya, \u00f6l\u00e7\u00fclecek s\u0131cakl\u0131k aral\u0131\u011f\u0131na ve gereken do\u011fruluk d\u00fczeyine ba\u011fl\u0131d\u0131r.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"> <strong>S\u0131cakl\u0131k neden fiziksel bir \u00f6zelliktir?<\/strong><\/h2>\n<p class=\"ans\"> <em>S\u0131cakl\u0131k, bir maddenin veya sistemin kimyasal bile\u015fimini de\u011fi\u015ftirmeden \u00f6l\u00e7\u00fclebilen bir \u00f6zelli\u011fini tan\u0131mlad\u0131\u011f\u0131 i\u00e7in fiziksel bir \u00f6zellik olarak kabul edilir. Ba\u015fka bir deyi\u015fle s\u0131cakl\u0131k, maddenin kimliklerini de\u011fi\u015ftirmeden \u00f6l\u00e7\u00fclebilen ve farkl\u0131 maddeler aras\u0131nda kar\u015f\u0131la\u015ft\u0131r\u0131labilen temel bir \u00f6zelli\u011fidir.<\/em><\/p>\n<p> S\u0131cakl\u0131\u011f\u0131n fiziksel bir \u00f6zellik olarak s\u0131n\u0131fland\u0131r\u0131lmas\u0131n\u0131n baz\u0131 temel nedenleri \u015funlard\u0131r:<\/p>\n<ul>\n<li> <strong>Madde miktar\u0131ndan ba\u011f\u0131ms\u0131z:<\/strong> S\u0131cakl\u0131k, mevcut malzeme miktar\u0131na ba\u011fl\u0131 de\u011fildir. \u0130ster k\u00fc\u00e7\u00fck ister b\u00fcy\u00fck bir numuneniz olsun, <a href=\"http:\/\/hyperphysics.phy-astr.gsu.edu\/hbase\/thermo\/thereq.html\" target=\"_blank\" rel=\"noopener\">termal dengede<\/a> olduklar\u0131 s\u00fcrece s\u0131cakl\u0131k ayn\u0131 kal\u0131r. \u00d6rne\u011fin, bir bardak s\u0131cak su ile s\u0131cak suyla dolu bir y\u00fczme havuzunun s\u0131cakl\u0131\u011f\u0131 ayn\u0131 olabilir ancak y\u00fczme havuzunda \u00e7ok daha fazla miktarda su bulunur.<\/li>\n<li> <strong>Fiziksel aletlerle \u00f6l\u00e7\u00fclebilir:<\/strong> S\u0131cakl\u0131k, termometreler, termokupllar ve k\u0131z\u0131l\u00f6tesi sens\u00f6rler gibi \u00e7e\u015fitli fiziksel aletler kullan\u0131larak \u00f6l\u00e7\u00fclebilir. Bu cihazlar bir maddenin termal enerjisini tespit edebilir ve s\u0131cakl\u0131\u011f\u0131n\u0131 temsil eden say\u0131sal bir de\u011fer sa\u011flayabilir.<\/li>\n<li> <strong>Fiziksel davran\u0131\u015f\u0131 etkiler:<\/strong> S\u0131cakl\u0131k, maddenin fiziksel davran\u0131\u015f\u0131n\u0131 etkiler. Bir maddenin kat\u0131, s\u0131v\u0131 veya gaz halinde (faz ge\u00e7i\u015fi) olup olmad\u0131\u011f\u0131n\u0131 belirler ve ayr\u0131ca yo\u011funlu\u011funu, hacmini ve bas\u0131nc\u0131n\u0131 etkiler. \u00d6rne\u011fin su \u0131s\u0131t\u0131ld\u0131\u011f\u0131nda s\u0131cakl\u0131\u011f\u0131 artt\u0131k\u00e7a buhara d\u00f6n\u00fc\u015f\u00fcr.<\/li>\n<li> <strong>Yo\u011fun bir \u00f6zelliktir:<\/strong> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Intensive_and_extensive_properties\" target=\"_blank\" rel=\"noopener\">Yo\u011fun \u00f6zellikler<\/a> , sistemin boyutuna veya k\u00fctlesine ba\u011fl\u0131 olmayan \u00f6zelliklerdir. S\u0131cakl\u0131k yo\u011fun bir \u00f6zelliktir \u00e7\u00fcnk\u00fc numune boyutundan ba\u011f\u0131ms\u0131z olarak de\u011feri belirli bir malzeme i\u00e7in ayn\u0131 kal\u0131r.<\/li>\n<li> <strong>Karakterizasyon ve kar\u015f\u0131la\u015ft\u0131rma i\u00e7in kullan\u0131l\u0131r:<\/strong> Bilim adamlar\u0131 ve m\u00fchendisler, maddeleri ve sistemleri karakterize etmek ve kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in s\u0131cakl\u0131\u011f\u0131 kritik bir parametre olarak kullan\u0131rlar. Fizik, kimya, m\u00fchendislik, meteoroloji ve \u00e7ok daha fazlas\u0131 gibi \u00e7e\u015fitli bilimsel alanlarda \u00e7ok \u00f6nemli bir rol oynar.<\/li>\n<\/ul>\n<p> \u00d6zetle s\u0131cakl\u0131k fiziksel bir \u00f6zelliktir \u00e7\u00fcnk\u00fc maddenin miktar\u0131ndan ba\u011f\u0131ms\u0131z olarak \u00f6l\u00e7\u00fclebilen ve onun fiziksel davran\u0131\u015f\u0131n\u0131 etkileyen temel bir \u00f6zelli\u011fini tan\u0131mlar. Farkl\u0131 maddeler aras\u0131nda \u00f6l\u00e7\u00fclebilmesi ve kar\u015f\u0131la\u015ft\u0131r\u0131labilmesi, onu fizik bilimleri \u00e7al\u0131\u015fmalar\u0131nda \u00f6nemli bir kavram haline getirmektedir.<\/p>\n<h2 class=\"wp-block-heading\"> <strong>S\u0131cakl\u0131k neden kimyasal bir \u00f6zellik de\u011fildir?<\/strong><\/h2>\n<p class=\"ans\"> S\u0131cakl\u0131k <a href=\"https:\/\/en.wikipedia.org\/wiki\/Chemical_property\" target=\"_blank\" rel=\"noopener\"><em>kimyasal bir \u00f6zellik<\/em><\/a> <em>de\u011fildir<\/em> <em>\u00e7\u00fcnk\u00fc bir maddenin kimyasal bile\u015fimine ba\u011fl\u0131 de\u011fildir. Kimyasal \u00f6zellikler ise bir maddenin di\u011fer maddelerle nas\u0131l etkile\u015fime girdi\u011fini ve nas\u0131l kimyasal de\u011fi\u015fikliklere u\u011frad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayan \u00f6zellikleridir.<\/em><\/p>\n<p> Kimyasal \u00f6zellikler, bir malzemenin i\u00e7 yap\u0131s\u0131 ve bile\u015fiminin yan\u0131 s\u0131ra, di\u011fer maddelerle nas\u0131l reaksiyona girerek yeni bile\u015fikler olu\u015fturdu\u011fuyla da ilgilidir. Maddenin kimyasal kimli\u011findeki de\u011fi\u015fiklikleri i\u00e7erirler. \u00d6rne\u011fin yan\u0131c\u0131l\u0131k, asitler veya bazlarla reaktivite ve oksidasyon potansiyeli kimyasal \u00f6zelliklerin \u00f6rnekleridir.<\/p>\n<p> Buna kar\u015f\u0131l\u0131k s\u0131cakl\u0131k, bir maddenin par\u00e7ac\u0131klar\u0131n\u0131n ortalama kinetik enerjisinin bir \u00f6l\u00e7\u00fcs\u00fcd\u00fcr ve kimyasal bile\u015fiminden etkilenmez. Tamamen farkl\u0131 kimyasal bile\u015fime sahip iki madde, termal dengede ise ayn\u0131 s\u0131cakl\u0131\u011fa sahip olabilir.<\/p>\n<p> \u00d6rne\u011fin bir bardak su ve bir bardak etanol, kimyasal olarak farkl\u0131 olmalar\u0131na ra\u011fmen ayn\u0131 s\u0131cakl\u0131\u011fa sahip olabilir.<\/p>\n<p> S\u0131cakl\u0131k her \u015feyden \u00f6nce bir maddenin enerji durumuyla ba\u011flant\u0131l\u0131 olan ve bir sistemin \u0131s\u0131s\u0131n\u0131 veya so\u011fu\u011funu karakterize eden termodinamik bir \u00f6zelliktir.<\/p>\n<p> D\u0131\u015fsal bir \u00f6zelliktir, yani \u0131s\u0131 transferi gibi d\u0131\u015f fakt\u00f6rlerden etkilenebilir, ancak maddenin kimyasal yap\u0131s\u0131n\u0131 temelden de\u011fi\u015ftirmez.<\/p>\n<p> \u00d6zetle s\u0131cakl\u0131k, bir maddenin kimyasal davran\u0131\u015f\u0131n\u0131 veya kimli\u011fini tan\u0131mlamad\u0131\u011f\u0131ndan kimyasal bir \u00f6zellik de\u011fildir; daha ziyade maddede bulunan par\u00e7ac\u0131klar\u0131n ortalama kinetik enerjisini yans\u0131tan fiziksel bir \u00f6zelliktir.<\/p>\n<h2 class=\"wp-block-heading\"> <strong>S\u0131cakl\u0131k nas\u0131l \u00f6l\u00e7\u00fcl\u00fcr?<\/strong><\/h2>\n<p class=\"ans\"> <em>S\u0131cakl\u0131k genellikle farkl\u0131 t\u00fcrde termometreler veya s\u0131cakl\u0131k sens\u00f6rleri kullan\u0131larak \u00f6l\u00e7\u00fcl\u00fcr. \u00d6l\u00e7\u00fcm y\u00f6nteminin se\u00e7imi uygulamaya, \u00f6l\u00e7\u00fclecek s\u0131cakl\u0131k aral\u0131\u011f\u0131na ve gereken do\u011fruluk d\u00fczeyine ba\u011fl\u0131d\u0131r.<\/em><\/p>\n<p> <strong>S\u0131cakl\u0131\u011f\u0131 \u00f6l\u00e7mek i\u00e7in baz\u0131 yayg\u0131n y\u00f6ntemler \u015funlard\u0131r:<\/strong><\/p>\n<ol>\n<li> <strong>Cam S\u0131v\u0131 Termometre:<\/strong> Bu, geleneksel ve basit bir termometre t\u00fcr\u00fcd\u00fcr. S\u0131cakl\u0131ktaki de\u011fi\u015fikliklerle geni\u015fleyen veya b\u00fcz\u00fc\u015fen, genellikle c\u0131va veya alkol gibi bir s\u0131v\u0131yla doldurulmu\u015f bir cam t\u00fcpt\u00fcr. S\u0131cakl\u0131k, s\u0131v\u0131 seviyesinin termometre \u00fczerindeki bir \u00f6l\u00e7e\u011fe kar\u015f\u0131 okunmas\u0131yla belirlenir.<\/li>\n<li> <strong>Bimetalik \u015eerit Termometre:<\/strong> Bu tip termometre, birbirine ba\u011fl\u0131, farkl\u0131 termal genle\u015fme katsay\u0131lar\u0131na sahip iki farkl\u0131 metal \u015ferit kullan\u0131r. S\u0131cakl\u0131k de\u011fi\u015ftik\u00e7e, \u015feritler farkl\u0131 genle\u015fme oranlar\u0131 nedeniyle b\u00fck\u00fcl\u00fcr ve ortaya \u00e7\u0131kan hareket, s\u0131cakl\u0131\u011f\u0131 belirlemek i\u00e7in \u00f6l\u00e7\u00fclebilir.<\/li>\n<li> <strong>Termokupllar:<\/strong> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Thermocouple\" target=\"_blank\" rel=\"noopener\">Termokupllar<\/a> iki farkl\u0131 metal telin bir ucuna ba\u011flanmas\u0131yla olu\u015fan s\u0131cakl\u0131k sens\u00f6rleridir. \u0130ki u\u00e7 aras\u0131nda s\u0131cakl\u0131k fark\u0131 oldu\u011funda bir voltaj \u00fcretilir ve bu voltaja g\u00f6re s\u0131cakl\u0131k hesaplanabilir. Termokupllar geni\u015f s\u0131cakl\u0131k aral\u0131klar\u0131 ve h\u0131zl\u0131 tepki s\u00fcreleri nedeniyle yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/li>\n<li> <strong>Diren\u00e7 S\u0131cakl\u0131k Dedekt\u00f6rleri (RTD&#8217;ler):<\/strong> RTD&#8217;ler, bilinen ve tekrarlanabilir diren\u00e7-s\u0131cakl\u0131k ili\u015fkisine sahip, genellikle platin olmak \u00fczere saf metallerden yap\u0131lm\u0131\u015f s\u0131cakl\u0131k sens\u00f6rleridir. S\u0131cakl\u0131k de\u011fi\u015ftik\u00e7e RTD&#8217;nin direnci de\u011fi\u015fir ve bu de\u011fi\u015fiklik s\u0131cakl\u0131\u011f\u0131 hesaplamak i\u00e7in kullan\u0131l\u0131r.<\/li>\n<li> <strong>K\u0131z\u0131l\u00f6tesi termometreler:<\/strong> Temass\u0131z termometreler olarak da adland\u0131r\u0131lan <a href=\"https:\/\/en.wikipedia.org\/wiki\/Infrared_thermometer\" target=\"_blank\" rel=\"noopener\">k\u0131z\u0131l\u00f6tesi termometreler<\/a> , bir nesnenin yayd\u0131\u011f\u0131 k\u0131z\u0131l\u00f6tesi radyasyonu tespit ederek s\u0131cakl\u0131\u011f\u0131 \u00f6l\u00e7er. Nesneyle do\u011frudan temas gerektirmezler ve uzaktaki veya eri\u015filemeyen nesnelerin s\u0131cakl\u0131\u011f\u0131n\u0131 \u00f6l\u00e7mek i\u00e7in kullan\u0131\u015fl\u0131d\u0131rlar.<\/li>\n<li> <strong>Termist\u00f6rler:<\/strong> Termist\u00f6rler, direnci b\u00fcy\u00fck \u00f6l\u00e7\u00fcde s\u0131cakl\u0131\u011fa ba\u011fl\u0131 olan yar\u0131 iletken malzemeleri kullanan s\u0131cakl\u0131k sens\u00f6rleridir. S\u0131cakl\u0131k de\u011fi\u015ftik\u00e7e diren\u00e7leri azal\u0131r veya artar ve diren\u00e7teki bu de\u011fi\u015fiklik s\u0131cakl\u0131\u011f\u0131 belirlemek i\u00e7in kullan\u0131l\u0131r.<\/li>\n<li> <strong>Pirometreler:<\/strong> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrometer\" target=\"_blank\" rel=\"noopener\">Pirometreler<\/a> genellikle end\u00fcstriyel ortamlarda y\u00fcksek s\u0131cakl\u0131klar\u0131 \u00f6l\u00e7mek i\u00e7in kullan\u0131l\u0131r. Radyasyon alg\u0131lama prensibine g\u00f6re \u00e7al\u0131\u015f\u0131rlar ve f\u0131r\u0131nlar ve metalurji gibi a\u015f\u0131r\u0131 s\u0131cak nesnelerin s\u0131cakl\u0131klar\u0131n\u0131 \u00f6l\u00e7mek i\u00e7in uygundurlar.<\/li>\n<li> <strong>Dijital termometreler:<\/strong> Dijital termometreler s\u0131cakl\u0131\u011f\u0131 \u00f6l\u00e7mek ve dijital s\u0131cakl\u0131k okumas\u0131 sa\u011flamak i\u00e7in elektronik sens\u00f6rler kullan\u0131r. Genellikle bellek depolama, alarmlar ve veri kaydetme yetenekleri gibi ek \u00f6zelliklerle donat\u0131lm\u0131\u015ft\u0131r.<\/li>\n<\/ol>\n<p> Her s\u0131cakl\u0131k \u00f6l\u00e7\u00fcm y\u00f6nteminin avantajlar\u0131 ve s\u0131n\u0131rlamalar\u0131 vard\u0131r ve uygun y\u00f6ntemin se\u00e7ilmesi gereken do\u011fruluk, \u00f6l\u00e7\u00fclecek s\u0131cakl\u0131k aral\u0131\u011f\u0131 ve ilgili spesifik uygulama veya end\u00fcstri gibi fakt\u00f6rlere ba\u011fl\u0131d\u0131r.<\/p>\n<h3 class=\"wp-block-heading\"> <strong>daha fazla okuma<\/strong><\/h3>\n<p> <a href=\"https:\/\/chemuza.org\/tr\/erime-noktasinda-yogun-veya-genisletilmis-bir-ozelliktir\/\">Erime noktas\u0131 yo\u011fun veya kapsaml\u0131 bir \u00f6zellik midir?<br \/><\/a> <a href=\"https:\/\/chemuza.org\/tr\/cok-uzun-veya-genis-bir-mulktur\/\">Uzunluk yo\u011fun bir \u00f6zellik midir yoksa kapsaml\u0131 bir \u00f6zellik midir?<br \/><\/a> <a href=\"https:\/\/chemuza.org\/tr\/yuksek-sicaklik-veya-genisletilmis-bir-ozelliktir\/\">M\u00fclk y\u00fcksek s\u0131cakl\u0131kta m\u0131 yoksa kapsaml\u0131 m\u0131?<br \/><\/a> <a href=\"https:\/\/chemuza.org\/tr\/yogun-veya-kapsamli-bir-renk-ozelligidir\/\">Renk yo\u011fun bir \u00f6zellik midir yoksa kapsaml\u0131 bir \u00f6zellik midir?<br \/><\/a> <a href=\"https:\/\/chemuza.org\/tr\/yuksek-kutle-yogunlugu-veya-kapsamli-bir-ozelliktir\/\">M\u00fclk kitlesel yo\u011fun mu yoksa kapsaml\u0131 m\u0131?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u0131cakl\u0131k fiziksel bir de\u011fi\u015fimdir \u00e7\u00fcnk\u00fc bir maddenin par\u00e7ac\u0131klar\u0131n\u0131n ortalama kinetik enerjisini \u00f6l\u00e7er ve maddenin kimyasal bile\u015fiminde veya kimli\u011finde herhangi bir de\u011fi\u015fiklik anlam\u0131na gelmez. Bu, sistemdeki mevcut enerji miktar\u0131na ba\u011fl\u0131 olarak dalgalanabilen, tersine \u00e7evrilebilir bir de\u011fi\u015fikliktir. Asl\u0131nda bu sadece basit bir cevapt\u0131. Ancak bu konu hakk\u0131nda konseptinizi \u00e7ok net hale getirecek bilmeniz gereken birka\u00e7 \u015fey daha &#8230; <a title=\"S\u0131cakl\u0131k fiziksel mi yoksa kimyasal bir de\u011fi\u015fim midir? (ve neden?)\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/sicaklik-fiziksel-mi-yoksa-kimyasal-bir-degisim-midir\/\" aria-label=\"More on S\u0131cakl\u0131k fiziksel mi yoksa kimyasal bir de\u011fi\u015fim midir? (ve neden?)\">Devam\u0131n\u0131 oku<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u0131cakl\u0131k fiziksel mi yoksa kimyasal bir de\u011fi\u015fim midir? (Peki neden?) - Chemuza<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chemuza.org\/tr\/sicaklik-fiziksel-mi-yoksa-kimyasal-bir-degisim-midir\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u0131cakl\u0131k fiziksel mi yoksa kimyasal bir de\u011fi\u015fim midir? 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