Technician A says that when a substance is frozen to a solid state,heat energy is released.Technician B says that when ice melts,heat energy is released.Who is correct?

Question

Quizplus · Accepted Answer

When a substance freezes to a solid state, it releases heat energy to its surroundings because it is going from a higher energy state (liquid) to a lower energy state (solid). This process is exothermic. When ice melts, it absorbs heat energy, not releases it, making Technician B's statement incorrect.

Technician a Says That When a Substance Is Frozen to a Solid