Odpowiedzi

2010-04-01T01:33:10+02:00
Cw = 4200 J/kg*⁰C
m = 20 kg
Tp = 20 ⁰C
Tk = 100 ⁰C
ΔT = Tk - Tp = 100 ⁰C - 20 ⁰C = 80 ⁰C

Q = cw*m*ΔT = 4200 J/kg*⁰C * 20 kg * 80 ⁰C = 6720000 J = 6,72 MJ
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