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Dane:
Q=10000[J];
cw=4200[J/(kg*C)];
DT=10[C];
Wzór:
Q=m*cw*DT;
m=Q/(cw*DT);
Jednostka:
[m]=[J/(J/(kg*C)*C]=[kg];
Obliczenia:
m=10000/(4200*10)=10000/42000=0,24[kg].
Odp.Masa wody wynosi m=0,24[kg].