Question

the specific temperature at which a substance changes its state from a solid to a liquid is called the: a. thermal conductivity b. boiling point c. melting point d. density

Explanation:

• Thermal conductivity refers to a material's ability to conduct heat, not a phase - change temperature.
• Boiling point is the temperature at which a liquid changes to a gas.
• Melting point is the specific temperature for a solid - to - liquid phase change.
• Density is a measure of mass per unit volume, not related to phase change temperature.

Answer:

C. Melting Point