I have looked online for answers and have found no clarity on this and it is vexing me daily ever since the question came into my head. Someone please help.
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The molecules in gas are much more spread apart and energetic than in liquid. The molecules in liquid are more spread apart and energetic than in solids. Gas > liquid > solid
When we have gas-> solid we go through two phase changes which requires much colder temperatures to slow down the molecules and bring them closer together.
Liquid to solid does not require as much energy input because only one phase change is occurring.
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