Frost forms when water vapor changes directly to ice in a process called deposition. If you were to model the water particles before and after deposition, how would they compare?

Question

A. Before deposition, the particles vibrate in place; after deposition, they slide by each other.

B. Before deposition, the particles slide by each other; after deposition, they vibrate in place.

C. Before deposition, the particles vibrate in place; after deposition, they move quickly in all directions.

D. Before deposition, the particles move quickly in all directions; after deposition, they vibrate in place.
(10 Points)

Answer 1

The correct answer is:

D. Before deposition, the particles move quickly in all directions; after deposition, they vibrate in place.

Here's the reasoning:

• Before deposition, the water vapor is in a gaseous state, where particles move freely and rapidly in all directions.
• After deposition, when water vapor transforms directly to ice, the particles are arranged in a fixed structure and remain in place, vibrating around their fixed positions but not moving freely as they did in the gas phase.