Which physical change occurs during freezing?

Which physical change occurs during freezing?

• A. Gas to liquid
• B. Solid to liquid
• C. Liquid to solid
• D. Liquid to gas

Answer: (C)

The physical change that occurs during freezing is the transformation from liquid to solid. This process happens when a liquid loses energy, typically due to a decrease in temperature. As the temperature drops, the molecules in the liquid move slower and begin to form organized structures, which we observe as a solid. In contrast, the other options describe different phase transitions: converting a gas to a liquid is called condensation; turning a solid into a liquid is termed melting; and changing a liquid to a gas is referred to as evaporation. Each of these processes involves distinct energy changes and molecular motions that are characteristic of their respective transitions.

The physical change that occurs during freezing is the transformation from liquid to solid. This process happens when a liquid loses energy, typically due to a decrease in temperature. As the temperature drops, the molecules in the liquid move slower and begin to form organized structures, which we observe as a solid.

In contrast, the other options describe different phase transitions: converting a gas to a liquid is called condensation; turning a solid into a liquid is termed melting; and changing a liquid to a gas is referred to as evaporation. Each of these processes involves distinct energy changes and molecular motions that are characteristic of their respective transitions.