Which change in state requires that energy be added to the substance?

QUESTION POSTED AT 23/05/2020 - 04:22 PM

Answered by admin AT 23/05/2020 - 04:22 PM

Any change in state that increases the state of disorder of a substance's molecules requires energy to be added. In order to induce the increased disorder, intermolecular forces must be over come, presenting the need for energy input.
These state changes are solid to liquid and liquid to gas.
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