Define latent heat of fusion
Latent heat of Fusion : It is the heat required to change 1 kg of a solid substance into liquid state at the melting point of the substance. For example, amount of heat required to melt ice at 0 ° C into water at 0 ° C, will be known as the Latent Heat of Fusion of ice.
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Latent heat is the heat released or absorbed by a chemical substance or a thermodynamic system during a change of state that occurs without a change in temperature, meaning a phase transition such as the melting of ice or the boiling of water.
From this definition, the latent heat for a given mass of a substance is calculated by
- Q = m L