Which process involves the conversion of a liquid to a gas?

Which process involves the conversion of a liquid to a gas?

• A. Condensation
• B. Evaporation
• C. Freezing
• D. Deposition

Answer: (B)

Evaporation is the process where a liquid becomes a gas. It happens when molecules at the surface gain enough energy to overcome the attractive forces keeping them in the liquid and escape into the air as vapor. This can occur at temperatures below the liquid’s boiling point and usually happens more quickly with higher temperature, larger surface area, lower humidity, and better air movement. The other processes involve different phase changes: condensation is gas turning into a liquid, freezing is liquid turning into a solid, and deposition is gas turning directly into a solid. The scenario described specifically involves a liquid becoming a gas, which is why evaporation is the correct choice.

Evaporation is the process where a liquid becomes a gas. It happens when molecules at the surface gain enough energy to overcome the attractive forces keeping them in the liquid and escape into the air as vapor. This can occur at temperatures below the liquid’s boiling point and usually happens more quickly with higher temperature, larger surface area, lower humidity, and better air movement.

The other processes involve different phase changes: condensation is gas turning into a liquid, freezing is liquid turning into a solid, and deposition is gas turning directly into a solid. The scenario described specifically involves a liquid becoming a gas, which is why evaporation is the correct choice.