Dif\u00fczyon, maddelerin \u00e7ok yo\u011fun ortamdan az yo\u011fun ortama g\u00f6\u00e7\u00fc. Fiziksel kimyada ise molek\u00fcllerin kinetik enerjilerine ba\u011fl\u0131 olarak rastgele hareketlerine dif\u00fczyon denir.<\/p>\n
Dif\u00fczyonun modellemesi <\/p>\n
Dif\u00fczyonun temel d\u00fc\u015f\u00fcncelerinden birini olu\u015fturan rastgele hareket etme ilk olarak<\/p>\n
Dif\u00fczyon katsay\u0131s\u0131 <\/p>\n
Molek\u00fcl sahip oldu\u011fu kinetik enerjinin b\u00fcy\u00fckl\u00fc\u011f\u00fc \u00f6l\u00e7\u00fcs\u00fcnde belirli do\u011frultu ve h\u0131zda yer de\u011fi\u015ftirme e\u011filimi g\u00f6sterecektir. Di\u011fer molek\u00fcllerle \u00e7arp\u0131\u015ft\u0131\u011f\u0131nda do\u011frultular\u0131n\u0131 de\u011fi\u015ftirebiliriler. \u00c7arp\u0131\u015fma etkisi v ba\u015flang\u0131\u00e7 h\u0131z\u0131yla orant\u0131l\u0131 olarak ortaya \u00e7\u0131kan s\u00fcrt\u00fcnme kuvvetine e\u015fit olacakt\u0131r.<\/p>\n
* F = f2\u00d7v (Burada f2 = S\u00fcrt\u00fcnme katsay\u0131s\u0131, F = S\u00fcrt\u00fcnme kuvvetidir)<\/p>\n
K\u00fcresel bir partik\u00fcl i\u00e7in<\/p>\n
* f2 = 6\u03c0\u03b7r (Burada \u03b7 = Ortam\u0131n viskozitesi, r = partik\u00fcl\u00fcn \u00e7ap\u0131d\u0131r)<\/p>\n
ba\u011f\u0131nt\u0131s\u0131 yaz\u0131labilir.<\/p>\n
S\u00fcrt\u00fcnme kuvveti ile yap\u0131lan mekanik i\u015f molek\u00fcl\u00fcn yer de\u011fi\u015ftirmesi sonucu entalpi de\u011fi\u015fimine denktir. Bu nedenle entalpi de\u011fi\u015fimi bu kuvvetle olu\u015fan i\u015fin ters i\u015faretlisidir. Burdan yola \u00e7\u0131karak s\u0131ras\u0131yla,<\/p>\n
* F = – kT ( \u03b4lna \/ \u03b4x ) (ideal \u00e7\u00f6zelti i\u00e7in a = c)<\/p>\n
* F = – kT\/c ( \u03b4c \/ \u03b4x )<\/p>\n
Dif\u00fczyon kaysay\u0131s\u0131 D nin form\u00fcl\u00fc,<\/p>\n
* D = kT\/f2<\/p>\n
kullan\u0131larak;<\/p>\n
* D = kT ( 4\/3 \u03c0N\u03c12) 1\/3 \/ 6\u03c0\u03b7M 1\/3<\/p>\n
elde edilir. Bu ifade ayn\u0131 zamanda dif\u00fczyonun ifadesidir.<\/p>\n
Birim zamanda partik\u00fcl\u00fcn yer de\u011fi\u015ftirme miktar\u0131n\u0131n karesi ise,<\/p>\n
* x2 = ( kT \/ 3\u03c0\u03b7r ) \u0394t<\/p>\n
ba\u011f\u0131nt\u0131s\u0131 ile g\u00f6sterilir.<\/p>\n","protected":false},"excerpt":{"rendered":"
Dif\u00fczyon, maddelerin \u00e7ok yo\u011fun ortamdan az yo\u011fun ortama g\u00f6\u00e7\u00fc. Fiziksel kimyada ise molek\u00fcllerin kinetik enerjilerine ba\u011fl\u0131 olarak rastgele hareketlerine dif\u00fczyon denir. Dif\u00fczyonun modellemesi Dif\u00fczyonun temel d\u00fc\u015f\u00fcncelerinden birini olu\u015fturan rastgele hareket etme ilk olarak Dif\u00fczyon katsay\u0131s\u0131 Molek\u00fcl sahip oldu\u011fu kinetik enerjinin b\u00fcy\u00fckl\u00fc\u011f\u00fc \u00f6l\u00e7\u00fcs\u00fcnde belirli do\u011frultu ve h\u0131zda yer de\u011fi\u015ftirme e\u011filimi g\u00f6sterecektir. Di\u011fer molek\u00fcllerle \u00e7arp\u0131\u015ft\u0131\u011f\u0131nda do\u011frultular\u0131n\u0131 de\u011fi\u015ftirebiliriler. …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1407,1403],"tags":[4469,4468,2161,4470],"class_list":["post-1608","post","type-post","status-publish","format-standard","hentry","category-fen-ve-teknoloji-odevleri","category-odevler","tag-difuzyon-katsayisi","tag-difuzyon-nedir","tag-kinetik-enerji","tag-surtunme-kuvveti"],"_links":{"self":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/1608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/comments?post=1608"}],"version-history":[{"count":0,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/1608\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/media?parent=1608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/categories?post=1608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/tags?post=1608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}