When the solid and liquid phases are in equilibrium, which phase, solid or liquid, contains the most amount of energy (kenetic energy is the same)?

Also, what is the difference between the melting and freezing of a substance?

3 answers

To answer part of your question, melting point and freezing point are the same regardless of what you are discussing. To answer the first part of your question, when a liquid changes to a solid, is the process endothermic or exothermic?
At the point of freezing when the temprature has plateaued and there is an equilibrium between the liquid and solid phases which phase, solid or liquid contains the greater amount of energy?

In short, when the temperature of both the liquid and the solid are the same which phase contains the greater amount of energy, solid or liquid?
So I repeat, when you have an equilibrium with a solid and a liquid and both are at exactly the same temperature (let's say the exact melting point BUT you have both phases present), is the freezing (changing liquid to a solid)an endothermic or exothermic reaction.