C=81,5J/K
m apa = 100g
c apa = 4185 J/Kg K
t apa = 18°C
t=80°C
C c = 250 J/kg K
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te=?
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Qced = Q primit
Qced = mc*cc(tc-te)
Qprim=ma*ca(te-ta)+C(te-ta)
mc*cc(tc-te) = ma * ca (te-ta)+C(te-ta)
mc*cc*tc-mc*cc*te=ma*ca*te-ma *Ca*ta-Cte-Cta
mc*cc*tc+ma*Ca*ta+Cta=te(ma*Ca+mc*cc+c) =>
mc*cc*tc+ma*ca*ta totul supra ma*ca+mc*Cc+c
Si inlocuiesti
