Characteristics of a solid
Particles closely packed in a fixed lattice
Vibrate in place, held by strong forces
Fixed shape & volume,
Pt2 characteristics of solid
incompressible
Low kinetic energy
Characteristics of a liquid
Particles close together, random arrangement
Slide past each other, weaker forces than solids
Fixed volume, takes shape of container, incompressible
PT2 characteristic of liquid
Medium kinetic energy
What is a gas?
Particles far apart, random motion
Very weak forces of attraction
Takes shape & volume of container, compressible
pt2 characteristic of gas
High kinetic energy
in kenetic particle theory describes what happen in melting
Solid: fixed lattice, vibrate
Heat: particles gain KE
Melting point: temp constant, forces overcome
Liquid: random, slide past
In kenetic particle theory describes what happen in freezing
Liquid: random motion
Cooling: KE decreases
Freezing point: temp constant, forces form
Solid: fixed lattice, vibrate
In kenetic particle theory describes what happen in boiling
Liquid: random, slide, weaker forces
Heat: KE increases
Boiling point: temp constant, forces overcome
Gas: far apart, fast, weak forces
In kenetic particle theory describes what happen in evaportation
Liquid: particles with different KE
Process: surface particles escape
Key: highest KE particles only
Result: gas forms, cooling effect
in kinetic particle theory describes what happens in condensation
Gas: far apart, fast
Cooling: KE decreases
Forces form: particles come together
Liquid: closer, random motion
describe in kinetic theory sublimation
Solid: fixed lattice, vibrate
Heating: KE increases
Forces overcome completely
Gas: far apart, fast
describe in kinetic theory in depostion
Gas: far apart
Cooling: KE decreases
Forces form directly
Solid: fixed lattice
Boiling vs evaportation
Boiling happen throughout a liquid while evaporation only happens on the surface
Boiling happen at a specfic tempreture evaporation happen at any tempreture below the boiling point
Boiling happen faster than evaporation( happen gradulally)