Question

as a solid goes through a phase change to liquid, heat is absorbed and the temperature......
1 decreases.
2 remains the same.
3 fluctuates.
4 increases.

Explanation:

During a phase change from solid to liquid (melting), the heat energy absorbed is used to break the intermolecular forces rather than increasing the kinetic energy of the particles. Since temperature is related to the average kinetic energy of particles, the temperature remains constant until the phase change is complete.

Answer:

1. Remains the same.