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Q = 50*1*60
Q = 3000 kalori
Kalor dari C ke D
Qcd = m * c * ΔT
Qcd = 50 g * 1 kal.g⁻¹.°C * 60 °C
Qcd = 3.000 kal
Jawaban B
Nomor 12
Kalor dari B ke C
Qbc = m * L uap
Qbc = 2 kg * 2,27*10⁶ J.kg⁻¹ = 4,54*10⁶ J = 4,54*10³ kJ =4.540 kJ
Jawaban B
Nomor 13
Q = m * c * ΔT
Q = 2 kg * 4200 J.kg⁻¹.°C⁻¹ * (100 - 28)°C = 604.800 J = 604,8 kJ
Jawaban C
Nomor 14
Q = m * L
1.176.000 = m * 336.000
m = 1.176.000 / 336.000
m = 3,5 kg
Jawaban D