Ch-1: KPT Flashcards
What does the kinetic particle theory state?
All matter is made of particles that move in a constant random motion
How are the arrangement of particles in a solid?
The way the particles are set
They are in order and closely packed
How are the arrangement of particles in a liquid?
The way the particles are set
They are disordered and less closely packed than a solid
How are the arrangement of particles in a gas?
The way the particles are set
They are disordered and very far apart
How is the attractive force between solid particles ?
Force that holds particles together
Very strong
How is the attractive force between liquid particles ?
Force that holds particles together
Strong
How is the attractive forces between gas particles ?
Force that holds particles together
Very Weak
How is the kinetic energy of solid particles?
Moving energy
Very Low
How is the kinetic energy of liquid particles?
Moving energy
Low
What is the motion of solid particles?
movement
Vibrate and rotate in fixed positions
How is the kinetic energy of gas particles?
Moving energy
Very high
What is the motion of liquid particles?
movement
Move freely throughout the liquid
What is the motion of gas particles?
movement
Move about raplidly in any direction
Why does a gas not have fixed volume?
- Particles too far away from one another so,
- Can be compressed so it,
- Does not have a fixed volume
Why does a solid have a fixed volume?
- Particles too close to one another so,
- Cannot be compressed so it,
- Has a fixed volume
Why does a liquid have a fixed volume?
- Particles too close to one another so,
- Cannot be compressed so it,
- Has a fixed volume
What is melting?
Melting is a process in which a substance changes from solid to liquid
What is freezing?
Freezing is a process in which a substance changes from liquid to a solid
What is condensation?
Condensation is a process in which a substance changes from a gas to a liquid
What is evaporation?
Evaporation is a process in which a substance changes from liquid to gas
What is sublimation?
Sublimation is a process in which a substance changes from solid to gas
When do changes in state occur?
Changes in state occur when particles of matter gain or lose energy
What is diffusion?
Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration
Give 2 examples of diffusion
- Aromas from perfumes spreading in a room
- Color from tea spreading in a solution
What is the effect of temperature on the rate of diffusion of gases and liquids?
The higher the temperature, the higher the rate of diffusion
Is diffusion in liquid or gas slower?
The rate of diffusion in liquids are much slower than that in gases
Gases with lower molecular mass or higher molecular mass diffuse faster?
Gases with lower molecular mass diffuse faster than gases with higher molecular mass
Why does air and bromine mix?
Since they’re both gases, the particles of bromine diffuse into the spaces between air particles while the air particles diffuse into the spaces between the bromine particles
