Question

particles of a certain state of matter undergo a phase change. before the change, particles of this state matter are easily compressible and after the change, the particles become closely packed. the phase change is: a deposition b freezing c evaporation d condensation e sublimation

Explanation:

• Deposition: Gas to solid. But gas is compressible and solid has closely - packed particles. However, let's check others.
• Freezing: Liquid to solid. Liquid is not easily compressible (compared to gas).
• Evaporation: Liquid to gas. Opposite of what we need (particles go from less - closely packed to more compressible).
• Condensation: Gas (easily compressible) to liquid (closer - packed than gas, less compressible).
• Sublimation: Solid to gas. Opposite of what we need.

Answer:

d. Condensation