Which term describes the change of state from liquid to gas?

Which term describes the change of state from liquid to gas?

• A. Condensation
• B. Melting
• C. Vaporization
• D. Deposition

Answer: (C)

Vaporization is the change of state from liquid to gas. It happens when molecules in the liquid gain enough energy to overcome the intermolecular forces holding them in the liquid, allowing them to escape into the air. This energy input makes it endothermic, and vaporization can occur at the surface as evaporation or throughout the liquid during boiling. It’s different from condensation (gas to liquid), melting (solid to liquid), and deposition (gas to solid). In practice, vaporization affects how much vapor is produced, which matters for assessing vapor pressures and inhalation hazards around hazardous materials.

Vaporization is the change of state from liquid to gas. It happens when molecules in the liquid gain enough energy to overcome the intermolecular forces holding them in the liquid, allowing them to escape into the air. This energy input makes it endothermic, and vaporization can occur at the surface as evaporation or throughout the liquid during boiling. It’s different from condensation (gas to liquid), melting (solid to liquid), and deposition (gas to solid). In practice, vaporization affects how much vapor is produced, which matters for assessing vapor pressures and inhalation hazards around hazardous materials.