Physics for IGCSE & O level - Thermal Effects (Section 8 - No. 28)

What is the specific latent heat of fusion?
The energy required to change the temperature of a substance.
The energy required to change the state of 1 kg of a substance from liquid to gas.
The energy required to change the state of 1 kg of a substance from solid to liquid.
The energy released during a chemical reaction.

Explanation

Specific latent heat of fusion is the energy to change the state from solid to liquid.

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