Changing States Flashcards
What is the arrangement of particles in a liquid
Freely moving
In contact with one another
Kisser arrangement
What is matter made up of
Particles that are in continuous motion
What is the arrangement of particles in a solid
Fixed position
Closely packed
Not free to move around
What is the arrangement of particles in a gas
Freely moves
Not closely packed
No fixed arrangement
What does the average kinetic energy increase with
Temperature and pressure
What do gases exert upon colliding
Pressure
What happens when you change the volume of gas without changing the temperature
The pressure changes because the particles hit the wall at different rates
What happens to bonds during melting and evaporation
When heat energy is added the bonds between the molecules break
What happens to bonds in condensation and freezing
Kinetic energy of particles decreases. Attractive forces or intermolecular forces between particles get stronger and draw them together.
