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Explore the fascinating changes of state in chemistry with this insightful lesson on melting, freezing, evaporation, boiling, condensation, and sublimation. Discover how particles transition from solid to liquid to gas as well as the reverse processes. Delve into the world of molecular movement and understand the shifts in state that substances undergo.
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Chapter 2ChemistryLesson 2Changes of StateEssential Questions:1.) What happens to particles of a solid as it melts?2.) What happens to particles of a liquid as it vaporizes?3.) What happens to particles of a solid as it sublimes?
Melting- solid to a liquid The particles vibrate fast and break free from their fixed position Particles in a liquid Particles in a solid
Freezing- liquid to a solid The particles move slowly and begin to take a fixed position Particles in a liquid Particles in a solid
Evaporation- liquid to a gas at the surface level Some of the particles on the surface speed up Particles in a liquid Particles in a gas
Boiling- liquid to a gas below and at the surface level Particles below the surface speed up and break the surface Particles in a liquid Particles in a gas
Condensation- gas to a liquid The particles slow down Particles in a gas Particles in a liquid
Sublimation- surface particles of a solid form a gas Surface particles of a solid speed up Particles in a gas Surface particles in a solid