Specific latent heat Flashcards
1
Q
On a heat curve, what do the diagonal lines represent?
A
When the molecules are staying in the same state
2
Q
On a heat curve, what do the horizontal lines represent?
A
When molecules are changing state
3
Q
What is specific latent heat?
A
A measure of how much energy is needed to melt a boil a substance. The hidden energy that breaks intermolecular bonds.
4
Q
specific latent heat (SLH) of fusion?
A
melt + freeze
5
Q
SLH of vaporisation?
A
boiling/evaporation + condensing
6
Q
SLH
A
the energy required per KG to change its ste without any change in temperature
7
Q
What is the equation for SLH?
A
Energy required = mass x specific latent heat
E=ml
