The specific heat capacity of a substance is the quantity of heat required to produce a unit change in temperature per unit mass of that substance.
$Q = mc \Delta \theta$
SI unit for specific heat capacity: $J \, Kg^{-1} \, K^{-1}$
The specific latent heat of fusion, $L_{f}$ , is defined as the amount of heat required per unit mass to change a substance from the solid phase to the liquid phase without any change in temperature
$Q = mL_{f}$
The specific latent heat of vaporization, $L_{v}$, is defined as the amount of heat required per unit mass to change a substance from the liquid phase to the vapor phase without any change in temperature.
$Q = mL_{v}$
SI unit for specific latent heat of fusion/vaporization: $J \, Kg^{-1}$
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