Particle Model-Paper 1 Flashcards
What are the properties of gas
Easy to compress
Can flow
Low density
What is the arrangement and motion of particles in a gas
Very weak forces of attraction
High kinetic energy
Free to move
Far apart
Properties of a liquid
Can flow
Density similar to solid
Can’t be compressed
What is the arrangement and motion of particles in a liquid
Less kinetic energy than in a gas but more in a solid
Can slide past each other
Properties of a solid
Can’t be compressed
Can’t flow
High density
Arrangement and motion of particles in a solid
Low kinetic energy
Vibrate in their fixed position
Strong forces of attraction
What is internal energy
Energy which is stored by the particles in a system
Total kinetic energy and potential energy of all the particles
What is temp
Is a measure of the average kinetic energy of the particles
How heating affects the internal energy of a system
Heating causes internal energy to increase
What is latent heat of fusion
The energy needed to change the state of 1kg of a substance from solid to liquid without increasing its temp
What is latent heat of vaporisation
The energy needed to change the state of 1kg of a substance from liquid to Vapour without increasing its temp
How to find the density of a liquid
Measure mass of liquid
Find volume of liquid
Density=mass/volume
Describe a method to find find a density of a regular object
Record mass
Measure length width and height calculate volume
Density=mass/volume
Method to find the density of an irregular object
Record mass
Fill eureka can with water
Use measuring cylinder to collect the displaced water
Density=mass/volume
What’s the relationship between temp and gas pressure at a constant volume
As temp increases Pressure increases
