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inde 2 5 C ' de 1 0 m 3 zelti i eren bir kar t rmal n s tma tank serpantinli bir s t

inde 25C' de 10m3zelti ieren bir kartrmaln stma tank serpantinli bir stc ile istlmaktadr. Is deitirici iinde 130C de scaklkta doygun buhar kullanlmaktadr (akkan scakl olarak alnz). Is deitiricinin s aktarm katsaysh0A0=UA=150kcaldkC' dir. zeltinin molar ss,Cv=1kcalkg.C ve younluu 800kgm3 olarak sabit alnabilir.zelti scakl70C'ye ulatnda stmann kesilmesi gerekmektedir. Kartrma tankndan evreye s kaann olmad varsaylacak ve Tlm=T alnacaktr.
a) Ka dakika sonra buhar giriinin kapatlmas gerekir?
b)15 dakika sonra tanktaki zeltinin scakl ka derece olur?
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