Which process is liquid to gas?

Which process is liquid to gas?

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

Answer: (C)

Vaporization is the phase change where a liquid becomes a gas. It happens when the liquid absorbs enough energy to overcome the intermolecular forces holding the molecules together. This energy input can cause molecules at the surface to escape into the air (evaporation) or form bubbles throughout the liquid (boiling) when the temperature reaches the liquid’s boiling point at that pressure. It is endothermic, meaning heat must be added. The other processes involve different transitions: melting is solid to liquid; condensation is gas to liquid; deposition is gas to solid. In hazmat contexts, understanding vaporization helps predict vapor production and the potential for flammable or toxic vapors.

Vaporization is the phase change where a liquid becomes a gas. It happens when the liquid absorbs enough energy to overcome the intermolecular forces holding the molecules together. This energy input can cause molecules at the surface to escape into the air (evaporation) or form bubbles throughout the liquid (boiling) when the temperature reaches the liquid’s boiling point at that pressure. It is endothermic, meaning heat must be added. The other processes involve different transitions: melting is solid to liquid; condensation is gas to liquid; deposition is gas to solid. In hazmat contexts, understanding vaporization helps predict vapor production and the potential for flammable or toxic vapors.