C1.1 The Particle Model Flashcards
The relative distance between particles in a solid?
Touching with very little space between them
The relative distance between particles in a liquid?
Are still touching but with some space between them
The relative distance between particles in a gas?
Are not touching and have lots of space between them
Arrangement of particles in a solid?
Neat, compact, tight, next to each other
Arrangement of particles in a liquid?
Quite close, randomly arranged
Arrangement of particles in a gas?
Widely spaced, randomly arranged
Movement of particles in a solid?
Little to no movement - only vibration
Movement of particles in a liquid?
Fair amount of continuous movement
Movement of particles in a gas?
Lots of movement with plenty of space
Properties of solids?
Rigid, has volume, definite shape, resistant to change of shape, doesn’t flow, doesn’t expand to fill, can’t be compressed easily
Properties of liquids?
No shape, fixed volume, can’t be easily compressed, can flow to take the shape
Properties of gases?
No shape, no volume, easy to compress, expands, low density, occupies more space than solids & liquids
Why do gases flow and fill their container?
- The particles don’t touch each
other - has space in between - Occupies lots of space/expands to
fill the container
Why do liquids take the shape of a container?
- The particles aren’t squeezed
together - have space in
between/isn’t compressed
Why does a solid expand when heated?
When particles vibrate (when heated), more space is created (due to the particles gaining energy)
