Particles in water at 0°C have more energy compared to particles in ice at the same temperature because the water particles are in the liquid state, while the ice particles are in the solid state.
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“Latent” means hidden, referring to the hidden heat energy absorbed or released during a phase change without a change in temperature.
The latent heat of fusion is the amount of heat energy required to change 1 kg of a solid into a liquid at atmospheric pressure at its melting point.
The heat energy absorbed during melting, without a change in temperature, is known as latent heat. Define latent heat of fusion.
The heat supplied during melting is used to overcome the forces of attraction between particles, rather than increasing the temperature of the system.