matter

Question 1

what is internal energy

Answer 1

Energy stored inside a system by particles, kinetic energy and potential energy

Question 2

Heating Graph

Answer 2

A temperature of solid is rising as the increased the energy of particles
Be at some point temperature stops rising and melts
C everything will have melted and temperature will rise again
D boiling energy we are putting in is weakening/breaking the forces of attraction between particles
E once all liquids are boiled temp temperature increases

Question 3

What is specific latent heat?

Answer 3

Specific latent heat of a substance as the amount of energy required to change the state of 1 kg of the substance with no change in temperature

Question 4

Specific latent heat of fusion

Answer 4

Energy required to change 1 kg of a substance from solid to liquid with no change in temperature

Question 5

specific Layton heat of vapourisation

Answer 5

The energy required change 1 kg of a substance from a liquid to a gas with no change in temperature

Question 6

Specific latent heat formula

Answer 6

(j/kg) E = m (kg) x L (j)

Question 7

Density

Answer 7

Density of a material tells the mass of a given volume

Question 8

solid particle arrangement

Answer 8

particles close together
regular pattern
vibrate

Question 9

liquid particle arrangement

Answer 9

particles touch
not arranged
move around

Question 10

gas particle arrangement

Answer 10

not arranged in pattern
moving rapidly and constant

Question 11

Density foula

Answer 11

D = m (kg) DIVIDED v (m cubed)