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m = 0,5 kg
Δt = t2 - t1 = 220 - 20 = 100
Q = 70 kJ = 70000 J
ditanya : c?
penyelesaian :
Q = mcΔt
70.000 = 0,5 x c x 100
70.000 = 50 x c
c = 70.000 : 5
c = 14.000 J/ kg C
c = 1,4 x 10⁴ J/kg C
Δt = 200'C
Q = 70 kJ = 70.000 J
Dit : C ?
C = Q / m.Δt
= 70.000 J / 0,5 kg.200'C
= 700 J/kg'C
maaf ya kalau salah