Question
Mon April 25, 2011 By: Akankshya Sahu
 

define heat of fusion.

Expert Reply
Tue April 26, 2011
Definition: The amount of heat required to convert a unit mass of a solid at its melting point into a liquid without an increase in temperature.
 

The energy required to change a gram of a substance from the solid to the liquid state without changing its temperature is commonly called it's "heat of fusion". This energy breaks down the solid bonds, but leaves a significant amount of energy associated with the intermolecular forces of the liquid state.

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