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What phase change requires a substance to absorb energy?
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What phase change requires a substance to absorb energy?

User Grant Williams
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Solid because in order for ice to melt heat has to be near
User Yossico
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Note that melting and vaporization are endothermic processes in that they absorb or require energy, while freezing and condensation are exothermic process as they release energy.
User Blindguy
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