The latent heat of fusion of a substance is always less than the latent heat vapourization . Explain.

Explanation

To explain why the latent heat of fusion of a substance is always less than the latent heat of vaporization, we can break down the concepts involved in both processes: fusion (melting) and vaporization (boiling).

### Step-by-Step Solution:

1. **Understanding Latent Heat**:
- Latent heat is the amount of heat energy required to change the state of a substance without changing its temperature. There are two main types: latent heat of fusion and latent heat of vaporization.

2. **Latent Heat of Fusion**:
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