December 2018 1 116 Report

Intr-un pahar se gasesc m1= 200g de ceai, la temperatura de t1=80grade Celsius.
De cata gheata la t2=-20 grade Celsius avem nevoie pentru a ajunge la temperatura finala de 50 grade celsius. (Stiind ca apa si ceaiul au c=4190 J/Kg*K si nu se pierde deloc caldura) Va rog vreau o rezolvare buna ...Maine am test din asa ceva!!! .

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