Internal Energy and Energy Transfers Flashcards
1
Q
specific latent heat
A
energy needed to change 1kg of a substance’s state
2
Q
specific latent heat of fusion
A
the energy needed to change 1kg of a solid into 1kg of a liquid at the same temperature
3
Q
specific latent heat of vaporisation
A
the energy needed to change 1kg of liquid to 1kg of gas at the same temperature
4
Q
specific heat capacity
A
the energy needed to raise 1kg of a substance by 1 degree
5
Q
what are the factors of specific heat capacity
A
- mass of substance
- type of substance
- energy in the system
6
Q
what is internal energy?
A
the total kinetic and potential energy of all the particles in a sytem
7
Q
what does heating cause?
A
- change in state
- as particles separate PE stored increases
- increases temperature in a system
- particles move faster so KE increases
