Particle Model of Matter

Question 1

Density(p)

Answer 1

mass(m) / volume(v)

Question 2

Density definition

Answer 2

mass per unit volume

Question 3

Solid Properties

Answer 3

• can’ t flow
• shape is fixed
• volume is fixed
• denser than a gas and liquid
• strong bonds between particles

Question 4

Liquid Properties

Answer 4

• can flow
• shape isn’t fixed
• volume is fixed
• denser than a gas
• can change shape due to bonds

Question 5

Gas Properties

Answer 5

• can flow
• shape isn’t foxed
• volume isn’t fixed
• less dense than a liquid and solid

Question 6

Latent Heat

Answer 6

Fusion - energy required to turn a substance from a solid to a liquid
Vaporisation - energy required to turn a substance from liquid to gas

Question 7

Specific Latent Heat

Answer 7

E = mLf or E = mLv

Question 8

Pressure Law

Answer 8

pressure is directly proportional to the temperature in Kelvin at a constant volume

particles move faster so harder and more successful collisions.

Question 9

Boyle’s Law

Answer 9

pressure is inversely proportional to volume at a constant temperature

frequency increases
more collision of particles

Question 10

Energy when given mass or mLv or mLf

Answer 10

energy = mass x specific latent heat

Question 11

Internal Energy

Answer 11

• kinetic energy of the particles
• the potential energy of the particles

internal energy = kinetic energy of particles + potential energy of particles

Question 12

Work on a gas

Answer 12

• if you compress a gas you do work on it
• this increases the internal energy
• as the p.e is already at a maximum the work increases the kinetic energy of particles so temp goes up