Notice that the temperature stays the same during a change of state, melting or boiling, even though heat energy is still being absorbed.
The temperature also stays the same while a liquid freezes, even though heat energy is still being released to the surroundings.
specific latent heat
The specific latent heat of a substance is a measure of how much heat energy is needed to melt or boil it. It is the energy needed to melt or boil 1 kg of the substance.
Different substances have different specific latent heats. The specific latent heat of a given substance is different for boiling than it is for melting. The table shows some examples.
Comments
No comments have yet been made