Phase changes: When a solid melts,
A) the temperature of the substance increases.
B) the temperature of the substance decreases.
C) heat energy leaves the substance.
D) heat energy enters the substance.

Question

Quizplus · Accepted Answer

When a solid melts, it absorbs heat energy from the surroundings, causing the temperature of the substance to remain constant until all the solid has melted. Therefore, heat energy enters the substance during the phase change from solid to liquid.

Phase Changes: When a Solid Melts