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Q ke R = m.l = 1 x 330.000 = 330.000 J
R ke S = m.c.Δt = 1 x 4200 x 40 = 168.000 J
P ke S = 10.500 + 330.000 + 168.000 = 508.500 J
Mestinya kalo dari P ke S jawabannya itu dan setau saya biasanya kalor lebur es itu 336.000 J/Kg
Q₁ = m c_es ΔT = 1kg (2100)(0-(-5)) = 10500J >>dari P-Q
Q₂ = m L = 1 (330000)= 330000J >>dari Q-R
Q₃ = m c_air ΔT = 1 (4200)(40-0)=168000J >>dari R-S
Q = 508500J