Odpowiedzi

2010-03-13T17:38:55+01:00
M = 1kg (1l - 1kg)
t = 2 min = 120s
t1 = 20C
t2 = 100C
Δt = t2 - t1 = 80C
cp = 4200 J / kg*K
P = ?

Q = cp * m * Δt
P = Q/t = (cp * m * Δt)/t = (4200 * 1 * 80)/120 = 2800W = 2.8kW