Odpowiedzi

2010-02-25T12:10:11+01:00
Dane:
m₁ = 2 kg
T₁ = 60⁰C
T = 20⁰C
Cw = 4190 [J/kg ×⁰C]
Rozw.:
Q = m × Cw × ΔT
ΔT= T₁ -T = 40⁰C
Q = m × Cw × ( T₁ -T) = 2 kg × 4190 [J/kg ×⁰C] × 40⁰C = 335200J