IGCSE Chemistry Topic 1 : States of Matter
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17 Terms
Particle Arrangement in Solid
Regular
Particle Arrangement in Liquid
Irregular
Particle Arrangement in Gas
Random, Irregular
Particle Movement in Solid
Vibrating in a fixed position
Particle Movement in Gas
Random movement
Particle Movement in Liquid
Move freely / Past each other
Particle Arrangement in Solid
Compact, Touching, Close Together
Particle Arrangement in Liquid
Close Together
Particle Arrangement in Gas
Far apart
Melting
Melting is when a solid changes to a liquid
Freezing
Freezing is when a liquid changes to a solid
Boiling
When a liquid turns into a vapor when it is heated to its boiling point
Evaporation
The processes of surface particles escaping when heated up
Condensation
When a gas cools into a liquid
Deposition
Gas directly to solid
Sublimation
Solid directly to gas
Why does temperature stay constant during melting or boiling on a heating curve?
Temperature stays constant during melting or boiling because the energy is used to overcome the bonds between particles rather than increase their kinetic energy.
Note 
Flashcards (31)