P6.5 Specific latent heat Flashcards
1
Q
What is the latent heat of fusion?
A
The energy needed by the particles to break free from each other
2
Q
What is the specific latent heat of fusion?
A
Energy needed to change the state of 1kg of the substance from solid to liquid at its melting point
3
Q
What is the unit of specific latent heat of fusion?
A
J/kg
4
Q
What is the equation for specific latent heat of fusion?
A
Energy / mass
5
Q
What is latent heat?
A
Energy transferred when a substance changes its state
6
Q
What is the latent heat of vaporisation?
A
Energy needed by the particles to break away from their neighbouring particles in the liquid
7
Q
What is the specific latent heat of vaporisation?
A
Energy needed to change the state of 1kg of the substance from liquid to vapour
