Ch - 9 (The Kinetic Model of Matter) Flashcards
What are properties of solids?
- Definite shape
- Definite volume
- do not flow
- Cannot be compressed
What are properties of liquids?
- No definite shape
- definite volume
- can flow
- cannot b compressed
What are properties of gases?
- No definite shape
- No fixed volume
- Flow
- Compressible
What changes when the state changes?
energy n reversible
What happens when particles gain energy?
Gain kinetic energy
what is the relation between temperature and pressure?
As temp increases, pressure increases.
What is absolute zero temp?
Particles are no longer moving and do not collide with the container.
What is the value of absolute zero temp ?
- 273°C or K (Kelvin)
How do particles of gas move around?
Random motion.
What does it mean if particles travel in random motion?
no specific path
When are there sudden changes in the movement of gas particles?
- walls of its container
- other molecules.
How is pressure in a gas caused in a container?
by the collisions with the surface of the container walls.
What is the formula for pressure?
P = F/A
What does the Kinetic Theory of Matter state?
All matter is made up of tiny particles
What is Brownian motion?
The random movement of particles in a liquid or a gas is produced by large numbers of collisions with smaller particles that are hard to see.