Jawaban:
jadi, jawabannya Q= 42000 Joule
Penjelasan:
liat gambar
maaf kalo salah:)
KALOR
T₁ = -5°C
T₂ = 20°C
m = 800 g = 0,8 kg
cₑₛ = 2100 J/kg°C
cₐᵢᵣ = 4200 J/kg°C
Lₑₛ = 336000 J/kg
Q = ... ?
Q = Q₁ + Q₂ + Q₃
Q = m cₑₛ (0 - T₁) + m Lₑₛ + m cₐᵢᵣ (T₂ - 0)
Q = 0,8 · 2100 · (0 - (-5)) + 0,8 · 336000 + 0,8 · 4200 · (20 - 0)
Q = 344400 J ✔
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Jawaban:
jadi, jawabannya Q= 42000 Joule
Penjelasan:
liat gambar
maaf kalo salah:)
KALOR
T₁ = -5°C
T₂ = 20°C
m = 800 g = 0,8 kg
cₑₛ = 2100 J/kg°C
cₐᵢᵣ = 4200 J/kg°C
Lₑₛ = 336000 J/kg
Q = ... ?
Q = Q₁ + Q₂ + Q₃
Q = m cₑₛ (0 - T₁) + m Lₑₛ + m cₐᵢᵣ (T₂ - 0)
Q = 0,8 · 2100 · (0 - (-5)) + 0,8 · 336000 + 0,8 · 4200 · (20 - 0)
Q = 344400 J ✔