Question

a system that changes from a solid state to liquid state gains energy

Answer 1

❤❤ Hello ❤❤

⚫⚫ Kinetic energy ⚫⚫

Answer 2

Answer:

Concept:

Endothermic changes necessitate the addition of energy to the substance.

Explanation:

It takes energy to convert ice to liquid because the links between the water molecules in a hexagonal crystalline structure must be broken.

The heat energy provided to the substance during change of state (from solid to liquid, gas to liquid, etc.) is used for the change of state rather than increasing the kinetic energy of the molecules (which contributes to the temperature of the material), so the temperature remains constant.

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