Question

1. which phase change is endothermic?

vaporization
freezing
condensation
deposition

Explanation:

• Vaporization is the process of a liquid turning into a gas. It requires the absorption of heat, making it an endothermic process.
• Freezing is the process of a liquid turning into a solid. It releases heat, making it an exothermic process.
• Condensation is the process of a gas turning into a liquid. It releases heat, making it an exothermic process.
• Deposition is the process of a gas turning directly into a solid. It releases heat, making it an exothermic process.

Answer:

vaporization