Topic 3 Specific Latent Heat Flashcards
1
Q
What is energy needed to change a state called
A
Latent heat
2
Q
What is specific latent heat
A
The energy required to change the state of 1kg of material without changing its temperature
3
Q
What is the specific latent heat between a solid and a liquid (melting or freezing)
A
Specific latent heat of fusion
4
Q
What is the specific latent heat between gas and liquid called (evaporating, boiling, condensing )
A
Specific latent heat of vaporisation
5
Q
When a substance is condensing or freezing what happens
A
Bonds are forming so the internal energy decreases but doesnt go down until all the the substance has turned to liquid
6
Q
For cooling what is slh
A
The energy released by the change in state
7
Q
What happens during the flat part of the line
A
The pd increases
