zadanie w załączniku w 7 zrobić obliczenia bardzo prosze o dobre rozwiazanie pilnie:)
m = 2kgT = 5°CQ = 42kJ = 42000JCw = Q/m*TCw = 42000J/2kg * 5°CCw = 42000J/10kg*°CCw = 4200J/kg*°CCw = 4200J/kg*°Cm = 6kgT = 5°CQ = ?Cw = Q/m*T /* m*TQ = Cw * m * TQ = 4200J/kg*°C * 6kg * 5°CQ = 126000J = 126 kJ <--- Odp. C.
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m = 2kg
T = 5°C
Q = 42kJ = 42000J
Cw = Q/m*T
Cw = 42000J/2kg * 5°C
Cw = 42000J/10kg*°C
Cw = 4200J/kg*°C
Cw = 4200J/kg*°C
m = 6kg
T = 5°C
Q = ?
Cw = Q/m*T /* m*T
Q = Cw * m * T
Q = 4200J/kg*°C * 6kg * 5°C
Q = 126000J = 126 kJ <--- Odp. C.