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As a solid undergoes a phase change to a liquid state, it

As a solid undergoes a phase change to a liquid state, it

Q. As a solid undergoes a phase change to a liquid state, it

A.            releases heat while remaining at a constant temperature.

B.            absorbs heat while remaining at a constant temperature.

C.            releases heat as the temperature decreases.

D.            absorbs heat as the temperature increases.

Answer: absorbs heat while remaining at a constant temperature.

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