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C= 4200 J/kg°C
m= 5 kg
Q= 84000 J
Dit:
Δt=..?
Penye:
Δt= Q/(m.C)
Δt= 84000/(5×4200)
Δt= 84000/21000
Δt= 4°C
Uji:
Q= m.C.Δt
Q= 5×4200×4
Q= 84000 joule (terbukti)
Q = 84.000 J
m = 5 kg
Ditanya = Δt..?
Jawab = Q = mc.Δt
84.000 = 5 x 4.200.Δt
84.000 = 21.000Δt
Δt = 4'C
Jawabnnya tidak ada, Jika suhu akhrinya diketahui (6 / 16 / 26 / 36) maka ada jawbannya..