The temperature at which a liquid turns into a solid is known as what?

The temperature at which a liquid turns into a solid is known as what?

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

Answer: (A)

The freezing point is the temperature at which a liquid becomes a solid. At this point, the liquid and solid phases are in equilibrium, so if you continue cooling, the liquid tends to form a crystalline solid as molecular motion slows and particles lock into an organized structure. For a pure substance at a given pressure, the freezing point equals the melting point—the temperature where solid becomes liquid when heated. Impurities can broaden this point into a range rather than a single temperature. The other options describe different phase changes: boiling point is when a liquid turns into a gas, and vaporization is not a standard separate term for this context.

The freezing point is the temperature at which a liquid becomes a solid. At this point, the liquid and solid phases are in equilibrium, so if you continue cooling, the liquid tends to form a crystalline solid as molecular motion slows and particles lock into an organized structure. For a pure substance at a given pressure, the freezing point equals the melting point—the temperature where solid becomes liquid when heated. Impurities can broaden this point into a range rather than a single temperature. The other options describe different phase changes: boiling point is when a liquid turns into a gas, and vaporization is not a standard separate term for this context.