kinetic particle theory

Question 1

what is the kinetic particle theory

Answer 1

the kinetic particle theory states that all matter is made up of tiny particles and these particles and in constant random motion

Question 2

what is the arrangement and movement of particles in the solid state from the particulate model of matter

Answer 2

1. very closely packed in an orderly arrangement
2. held in a fixed position due to very strong forces of attraction between particles
3. vibrate about their fixed positions –> unable to flow

Question 3

why do solids have a fixed volume and shape

Answer 3

1. arranged in a fixed position and regular pattern
2. strong attractive force prevents particles from breaking away from their fixed positions

Question 4

why are solids incompressible

Answer 4

there is little space between the particles as they are close together

Question 5

why are solids unable to flow

Answer 5

their strong attractive forces them to only vibrate about their fixed positions

Question 6

what is the arrangement and movement of particles in the liquid state from the particulate model of matter

Answer 6

1. packed close together in a disorderly arrangement
2. held by moderate forces of attraction between particles –> prevent them from escaping their positions
3. able to move about and slide past each other within confined space –> flow easily and taking up the shape of the container

Question 7

why do liquids have a fixed volume but no fixed shape

Answer 7

1. moderately strong attractive force prevents them from escaping from their positions
2. particles can only move about/slide past each other

Question 8

why do liquids have no fixed volume and shape

Answer 8

1. particles can move freely and randomly in all available spaces
2. negligible attractive force not able to hold them in confined spaces

Question 9

what is the arrangement and movement of particles in the gaseous state from the particulate model of matter

Answer 9

1. particles are spaced very far apart, in a random, disorderly arrangement
2. particles are held together by very weak forces of attraction
3. they are able to move in all directions, randomly and freely, at high speeds –> flow easily

Question 10

why are gases compressible

Answer 10

there are large, empty spaces between particles –> can be squeezed together