What term describes the temperature at which a solid becomes a liquid?

What term describes the temperature at which a solid becomes a liquid?

• A. Boiling Point
• B. Freezing Point
• C. Sublimation Point
• D. Melting Point

Answer: (D)

Melting point is the temperature at which a solid changes into a liquid. At this point, the particles in the solid gain enough energy to break their rigid arrangement and flow as a liquid. For example, ice melts at 0°C under standard pressure. The other terms describe different phase changes: boiling point is when a liquid becomes a gas, freezing point is when a liquid becomes a solid, and sublimation point is when a solid goes directly to a gas.

Melting point is the temperature at which a solid changes into a liquid. At this point, the particles in the solid gain enough energy to break their rigid arrangement and flow as a liquid. For example, ice melts at 0°C under standard pressure. The other terms describe different phase changes: boiling point is when a liquid becomes a gas, freezing point is when a liquid becomes a solid, and sublimation point is when a solid goes directly to a gas.