3)      Mistura-se no interior
de um calorímetro 1000 g de Fe a 200  °C e 100 g de gelo a
-10  °C. Qual a temperatura de equilíbrio? 



Formula=



CH2O = 1 Cal sobre g  °C



CFe= 0,14 cal sobre g °C



Cgelo = 0,5 cal sobre g  °C



Lf = 80 cal sobre G
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