Kinetic particle model of matter Flashcards
Describe particle motion in solids.
vibration about a fixed position
Can solids be compressed?
no
Do solids have a fixed shape?
yes
Do solids have a fixed volume?
yes
How are the forces of attraction/bonds between molecules in a solid?
strong
How are molecules arranged in solids?
regular arrangement, molecules close together, tightly packed
Describe particle motion in liquids.
Particles flow and move over each other
Can liquids be compressed?
no
Do liquids have a fixed shape?
no
Do liquids have a fixed volume?
yes
How are the forces of attraction/bonds between molecules in a liquid?
weaker than in a solid
How are molecules arranged in liquids?
molecules are close together, irregular arrangement
Describe particle motion in gases, and the shape they take.
molecules are free to move, move randomly, all directions
take shape of container
Can gases be compressed?
yes
Do gases have a fixed shape?
no
Do gases have a fixed volume?
no
How are the forces of attraction/bonds between molecules in a gas?
weak forces of attraction, molecules far apart
What is internal energy?
energy of the molecules of a body