tolong dijawab yaaa besok dikumpul no. 16 saja

terima kasih.
Semoga bermanfaat

m = 2 kg
L = 340 × 10³ J/kg
c = 4,2 × 10³ J/kg °C
ΔT = 50 °C

Q BD = Q BC + Q CD
Q BD = m.L + m.c.ΔT
Q BD = 2.340 × 10³ + 2.4,2 × 10³.50
Q BD = 680 × 10³ + 8,4 × 10³.50
Q BD = 680 × 10³ + 420 × 10³
Q BD = 1100 × 10³ J
Q BD = 1100 kJ <= Jawaban A ✓