Which of the following processes is an example of deposition?

• A. Liquid water evaporating to form water vapor
• B. Ice melting to form liquid water
• C. Solid iodine subliming to form iodine gas
• D. Water vapor turning directly into ice

Answer: (D)

Verified step by step guidance

1. Understand the definition of deposition: Deposition is the phase transition in which a substance changes directly from a gas to a solid without passing through the liquid phase.
2. Analyze each process given in the problem:
3. - Liquid water evaporating to form water vapor is evaporation, a liquid to gas transition.
4. - Ice melting to form liquid water is melting, a solid to liquid transition.
5. - Solid iodine subliming to form iodine gas is sublimation, a solid to gas transition.
6. - Water vapor turning directly into ice is deposition, a gas to solid transition without becoming liquid first.