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Kenaikan suhu (Δt) = 30°C - 70°C
Massa (m) = 5 kg
Kalor jenis air (c) = 4200 J.Kg°C
Ditanya = Berapa Kalor yang dibutuhkan (Q) ?
Jawab =
Q = m.c.Δt
= 5 kg . 40°C . 4200 J/Kg°C
= 840.000 Jolule
= 840 KJ
kalo salah sorry ya