Particle model of matter Flashcards
Describe particles in a solid
Regular lattice/ pattern
Vibrate around a fixed point
Low amount of kinetic energy
Particles cannot be compressed
Do not fill a container
Describe particles in a liquid
Irregular pattern
Move around
More kinetic energy than solid
Particles cannot be compressed
Particles fill a container from the bottom
Describe particles in gas
Randomly arranged
Particles moves fast and in any direction
Highest amount of kinetic energy
Completely fill a container
Particles can be compressed
How to measure volume of an irregular object
Fill eureka until the water is about to come out of the spout then place a measureing cylinder under the spout. Place the object in the eureka can and measure the volume of the water collected
What is specific latent heat
Amount of energy needed to change the state of 1kg of a material without changing the temperature
Specific heat of fusion
Turning a solid into a liquid
Specific heat of vaporization
Turning a liquid into a gas
What is internal energy
The energy stored in a substances particles
If the temperature stays the same in a substance the particles
Kinetic energy stays the same
What will increasing the volume of a gas while keeping the temperature the same do
Increase the pressure
(This is vice vers)
What happens WHILE (not when) a substance is changing state
Internal energy increases
Temperature remains the same so therefore kinetic energy does
How does increasing temperature of a gas increase its pressure
-Kinetic energy of particles is increases
-Because particles move faster they collide with their container more FREQUENTLY
-Because pressure is determined on the force exerted on an area and more force is being exerted because particles more frequently hit the container pressure increases
When particles hit the container they create a net force which acts at
Right angles
Density definition
How much mass there is in a given space
How do gas particles move
In random directions
