6.2 States of matter Flashcards
Describe shape, volume and density in solid
fixed, fixed, high
Describe shape, volume and density in liquid
fits container, fixed, medium(high)
Describe shape, volume and density in gas
fills container, can be changed, low
Why are changes of state physical changes
- Conservation of mass (number of particles stay the same)
- No new substances
- Still has original properties just particles rearranged
What’s the change of state from gas - liquid and liquid - gas
g - l condensation
l - g boiling/vaporization
What’s the change of state from liquid - solid and solid - liquid
l - s freezing
s - l melting
What’s the change of state from solid - gas and gas - solid
gas - solid deposition
solid - gas sublimation
What happens to the particles when the temperature increases
they move faster
Describe properties in solid
- vibrate about their fixed positions
- Difficult to compress because particles are densely packed
Describe properties in liquid
- particles move randomly
- Does not have own shape so can flow, particles not held in fixed arrangement
- Difficult to compress - particles are very close together
Describe properties in gas
- Random movement
- Faster movement
- Far apart so density is less
- Easy to compress as particles are randomly arranged
Which state has the most amount of energy
gas
