Respuesta :
Answer: As heat energy is added to the solid, the kinetic energy of the molecules increases and their vibrations speed up. The molecules move farther away from their fixed positions and farther away from each other.
Explanation:
Answer: As heat energy is added to the solid, the kinetic energy of the molecules increases and their vibrations speed up. The molecules move farther away from their fixed positions and farther away from each other.
Explanation: