latent heat

Question

Heat to convert 0.5 kg of ice at 0°C to water at 0°C (L_f = 3.3×10⁺5 J/kg)?

RankGuru · Accepted Answer

1. **Latent Heat Link**: During a phase change (like melting), heat is absorbed without a change in temperature.
2. **Formula**: $Q = m L_f$, where $m$ is mass and $L_f$ is latent heat of fusion.
3. **Variables**:
   - $m = 0.5$ kg
   - $L_f = 3.3 	imes 10^5$ J/kg
4. **Calculation**:
   - $Q = 0.5 	imes 3.3 	imes 10^5$
   - $Q = 1.65 	imes 10^5$ J.
5. **Result**: **$1.65 	imes 10^5$ J** is required.

Rank Guru

latent heat

Select the correct option: