The Three States Of Matter Flashcards
What are the three common states of matter ?
Solid, liquid and gas
What are some features of solids ?
Extremely hard to compress
Fixed shape
Cannot flow from place to place
Describe the particle arrangement in a solid ?
- Packed together in a regular pattern with no spaces between the particles: hard to compress
- Solid particles can vibrate but cannot move from place to place
What are some features of liquids
Hard compress
Can take other shapes
Can flow
Describe the particle arrangement of liquids ?
The particles are close together with little to no space
Particles are free to move
What are some features of gasses ?
Easy to compress
Gassed are spread out
Describe the structure of gasses ?
Particles are widely spaced
Particles move quickly and randomly
How can we change a state of matter ?
Putting in or taking out energy
Why do we have to convert energy into a solid to convert it to a liquid ?
Liquids have more kinetic energy than a solid
It is neeeded to break the forces of attraction between the particles in a solid
Once broken they are free to move
If a structure has strong forces of attraction…..
We need to put more kinetic energy in to break these forces often in the form of heat
If a solid is easy to break then explain why ?
Forces of attraction between particles are relatively weak so they are fairly easy to break so low melting point aswell as easy to brake
This is the opposite for something with a high melting point/ hard
What happens when we freeze a substance ?
We cool it down to below its boiling point and the forces of attraction between particles reform
What are the limitations of the simple particle model ?
It assumes all particles are simple solid spheres however this is not the case
It’s assumed there are no forces between the particles however this is incorrect
