Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chemistry: Kinetic Particle Theory - Coggle Diagram
Chemistry: Kinetic Particle Theory
Matter
Solid
Very closely packed; orderly arrangement (fixed shape; fixed volume)
Vibrate about fixed positions (fixed shape)
Very strong forces of attraction
Liquid
Closely packed; disorderly arrangement (fixed volume; no fixed shape)
Strong forces of attraction
Particles slide across each other (no fixed shape)
Gas
Weak forces of attraction
Molecules spaced far apart; disorderly arrangement (no fixed volume; no fixed shape)
Move rapidly in every direction (no fixed shape)
KPT
Diffusion
Particles in constant + random motion to occupy any available space
Factor: Relative Molecular Mass (Mr)
Lower Mr --> Faster rate of diffusion
Higher Mr --> Slower rate of diffusion
Factor: Temperature
Higher temp --> Faster rate of diffusion
Lower temp --> Slower rate of diffusion
End outcome: Homogeneous mixture (equal amount of particle A + particle B)
Changes of State
Melting/Boiling
TE converted to KE
Move faster --> No rise in temp, as KE is used to overcome forces of attraction --> Eventually continuing to rise in temp
Freezing
Slows particles down --> No decrease in temp; as energy is released + increases forces of attraction --> Eventually continuing to reduce in temp
Condensation
Gas --> Liquid
Occurs when hot gas comes into contact with cooler surface
Evaporation
Liquid --> Gas
Occurs slowly at any temp, and only affects surface of liquid
Sublimation
Surface of solid have enough energy to break away from solid --> escape as gas
Solid 'poof' to Gas