specific heat Flashcards
1
Q
specific heat capacity
A
specific heat capacity of a substance is the amount of energy needed to raise the temperature of 1KG of the substance by 1k
2
Q
specific latent heat of fusion
A
amount of energy required to change the phase of 1kg of a substance from solid to liquid
3
Q
specific latent heat of vaporisation
A
amount of energy required to change the phase of 1KG of a substance from a liquid to a gas
4
Q
changes in internal energy during phase changes
A
when substance changes phase the temperature remains constant so there is no increase in kinetic energy.
the change in the forces between molecules during a change of phase produces change in potential energy and therefore internal energy
