Specific Latent Heat
Key Stage 4
Meaning
Specific Latent Heat is the energy required to change the state of 1kg of a substance.
About Specific Latent Heat
- The SI Unit of specific latent heat is the J/kg.
- Different materials have a different specific latent heat.
- Specific latent heat depends on the strength of the bonds holding the particles to each other.
- The specific latent heat of a material can be found by measuring the energy needed to change the state of the material.
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| The increase internal energy during the time when the temperature remains constant is the energy required to melt the material. This can be used to calculate the specific latent heat of fusion. | The increase internal energy during the time when the temperature remains constant is the energy required to vaporise the material. This can be used to calculate the specific latent heat of vaporisation. |