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Q = m.c.ΔT
4200 = 0,4.0,21.ΔT
4200 = 0,084.ΔT
ΔT = 4200:0,084
ΔT = 50000°C
Dik:m =400 gr=0,4 kg
:c =0.21 Kkal/kg°c
:Q =4200 Kkal
Dit : ΔT=......?
#Q=m x c x Δt 4.200=0,4 x 0,21 x Δt Δt=4.200 / 0,4 x 0,21 Δt=2.205
Jadi,jawabannya adalah 2.205
#GoodLuck