Specific Latent Heat

What does a change in heat require?

Energy to make or break intermolecular bonds

What happens to internal energy when melting or boiling?

It increases

What happens to internal energy when freezing or condensing?

It decreases

What are flat spots on change of state graphs?

When energy is being transferred by heating but is not raising the temperature

What is the energy required to change the state of a substance called?

Latent heat

What is specific latent heat?

The amount of energy required to change 1kg of a substance from one state to another without changing it’s temperature

What is the equation for specific latent heat?

E = mL

What is specific latent heat of fusion?

Changing between a solid and liquid

What is specific latent heat of vaporisation?

Changing between a gas and liquid