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C air = 4200 J/kg°C
L= 340.000 J/kg
C es = 2100 J/kg°C
Dit : Q ?
Jwb :
Q = m.c.Δt
= 1,5 kg.2100 J/kg'C.0'C
= 0 J
Q = m.L
= 1,5 kg.340.000 J/kg
= 510.000 J
Q = m.c.Δt
= 1,5 kg.4200 J/kg'C.100'C
= 630.000 J
Jadi, kalor yg diperlukan adalah:
0 J + 510.000 J + 630.000 J = 1.140.000 J
maaf ya kalau salah