Question

what phase change is the following substance undergoing? first, the particles of this substance are closely packed and are not easily compressed. after the change, the substance can flow easily but cannot be easily compressed. a deposition b sublimation c evaporation d melting e freezing

Explanation:

• Deposition is gas to solid.
• Sublimation is solid to gas.
• Evaporation is liquid to gas.
• Melting is solid to liquid. Particles in solid are closely - packed (fixed shape and volume, not easily compressed). In liquid, particles can flow (no fixed shape but fixed volume, not easily compressed).
• Freezing is liquid to solid.

Answer:

d. melting