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Cw ≈ 4200 [J/kg ×⁰C]
ΔT = 20 ⁰C
m = 5 kg
Szukane:
Q
Rozw.:
Q = m × Cw × ΔT = 5 kg × 4200 [J/kg ×⁰C] × 20 ⁰C = 420000J