What term describes the transition of a substance from the solid phase to the liquid phase?

What term describes the transition of a substance from the solid phase to the liquid phase?

• A. Condensation
• B. Melting
• C. Freezing
• D. Sublimation

Answer: (B)

The transition of a substance from the solid phase to the liquid phase is known as melting. This process occurs when a solid is heated, causing its particles to gain energy and move apart, which allows the substance to change to a liquid state. Melting is a significant physical change, and it can be observed in various materials, such as ice transforming into water. The other options refer to different processes: condensation involves the transition from gas to liquid, freezing is the process of a liquid turning into a solid, and sublimation describes the transition from solid directly to gas without passing through the liquid phase. Understanding these distinctions is crucial in the study of phase changes in matter.

The transition of a substance from the solid phase to the liquid phase is known as melting. This process occurs when a solid is heated, causing its particles to gain energy and move apart, which allows the substance to change to a liquid state. Melting is a significant physical change, and it can be observed in various materials, such as ice transforming into water.

The other options refer to different processes: condensation involves the transition from gas to liquid, freezing is the process of a liquid turning into a solid, and sublimation describes the transition from solid directly to gas without passing through the liquid phase. Understanding these distinctions is crucial in the study of phase changes in matter.