What does the kinetic theory of matter state?
All matter is made up of very small cells that are in constant motion
For every action there is an equal and opposite reaction
The particles of a substance will stay at rest unless heated
All matter is made of small particles that are in continuous random motion
Which state has the least densely packed molecules?
Solid
Liquid
Gas
Plasma
Have a fixed volume
Air
Have a fixed shape
Perfume
How solids move around
Osmosis
Vibration
Extremely quickly
In a straight line until it hits the walls of the container
Why does a solid expand upon heating?
The mean size of each molecule expands with each change in degree Kelvin
The air between the molecules exert a pressure that is equal in force to that of the solid molecules
Increased vibration causes molecules to move away from forces of attraction, therefore occupying more space
When the temperature of a solid increases then
The volume increases
The volume decreases
The density increases
The density decreases
The mass decreases
The mass increases
Nothing at all changes
Not easily compressed
Solids
Liquids
Gases
Shape affected by shape of container
Why does't latent heat of fusion cause change in temperature
The liquid is not being heated at all
Potential energy changes instead of kinetic
IS THIS A TRICK!?! Of course it changes temperature
Not enough energy is absorbed
True of Evaporation
Surface phenomenon
Occurs only at a specific temperature range
Change from liquid to gas
Increased when the surface area is increased
Temperature does not affect it all
Breeze increases the rate of evaporation
Causes cooling of surface
True of Boiling
Occurs only at a specific temperature
The entire liquid is at 1 temperature
