THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Latent heat
Two stages for the same sample
A 0.10 kg ice sample at 0°C melts, then the water warms to 20°C. Use Lf = 3.2 × 10⁵ J/kg and cwater = 4000 J/(kg·K).
Find the total heat supplied.
Organize the givens & assumptions
- m = 0.10 kg
- Lf = 3.2×10⁵ J/kg
- c = 4000 J/(kg·K)
- ΔT = 20 K
Ordinary-pressure pure water; constant stated heat capacity and latent heat; no losses; ice starts at 0°C.
- A
- B
- C
- D
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