Phases of matter Flashcards
Intermolecular forces
Solid
The intermolecular forces between the particles of a solid are strong therefore the particles are closely packed together. The particles are not free to move around but instead vibrate about their fixed positions.
Compressibility of solids
It is not easily compressed because the particles are tightly packed making it difficult to push them closer
If the molecules in a solid adopt a highly ordered packing arrangement, the structures are said to be _____.
crystalline
Intermolecular force
liquid
The inter-molecular forces between the particles of a liquid are weaker than in solids. The particles are also tightly packed together.
Shape of solid
fixed since there are rigids bonds due to strong forces between particles
Shape of liquid
Take the shape of their container
(the bonds are not rigid)
fixed volume (inter molecular forces)
Shape of gas
Spread out to fill the container which encloses them
Ability to flow
Solid
the rigid bonds between particles prevent them from flowing
Ability to flow
Liquids
the weaker forces between the particles cannot form rigid bonds and therefore liquids can flow
Ability to flow
gas
The very weak intermolecular forces cannot form rigid bonds and therefore gases can flow
Compressibility
Liquid
Not easily compressed since the particles are tightly packed(lack of space between molecules), making it difficult to push them closer
Compressibility
gas
Easily compressed since there is much space between the particles
Motion of particles
Solid
Vibrate about a mean position
Motion of particles
liquid
The particles free to move past or slide over one another (translate)
Motion of particles
gas
particles translate freely
