How does adding thermal energy change the intermolecular force between atoms or molecules in an object?

Weak intermolecular forces, low thermal energy. When an object such as liquid becomes a solid in form, this is sometimes caused by drop of heat, kinetic, energy in an object. And fast if there's weak molecular interaction.

Explanation:

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

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