Odpowiedź:
Q = m ⋅ c ⋅ Δt
Dane
Q=20kJ=20000J
Δt=90-20=70°
c =4190 J/kg*C
Szukane
m=
Przekształcamy wzór Q =m ⋅ c ⋅ Δt
m = Q / (c ⋅ Δt)
m = 20000/(4190*70)=0,068kg
Wyjaśnienie:
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Verified answer
Odpowiedź:
Q = m ⋅ c ⋅ Δt
Dane
Q=20kJ=20000J
Δt=90-20=70°
c =4190 J/kg*C
Szukane
m=
Przekształcamy wzór Q =m ⋅ c ⋅ Δt
m = Q / (c ⋅ Δt)
m = 20000/(4190*70)=0,068kg
Wyjaśnienie: