States Of Matter

Question 1

Solids

Answer 1

Particles are bonded in a fixed position with strong forces of attraction between them. There are small spaces between the particles, their density is high, they are not easily compressed and vibrate in a fixed position

Question 2

Liquid

Answer 2

Particles can mover over one another, with forces between particles are weaker than solids, the particle space is slightly larger and they move vigorously. It is not easily compressible and can exert pressure in all directions on sides of the container

Question 3

Gas

Answer 3

Particles are far apart with no force between particles and large spaces between particles and have a low density. These particles move around at high speeds and they are compressible. Exert pressure as a result of collisions of particles on an object

Question 4

Energy due to movement, if increased, the particles overcome the intermolecular forces and change from one phase to the other

Answer 4

Kinetic energy

Question 5

Held between particles and holds them together

Answer 5

Intermolecular forces

Question 6

Measure of the particles average kinetic energy

Answer 6

Temperature

Question 7

What happens when extra Ek is added to a substance

Answer 7

The extra heat is used to break down remaining bonds

Question 8

What happens when Ek from the environment is lost

Answer 8

It converts it to chemical potential energy, so the temperature remains constant

Question 9

What happens to particles when kinetic energy is added

Answer 9

The particles move faster