3.6.2 Thermal physics Flashcards
1
Q
Internal Energy
A
Sum of ramdomly distributed kinetic and potential energies of all its particles
2
Q
How to increase internal energy
A
- Work done on the system
- Increase Temperature of system
3
Q
Impact on Internal Energy when state changes
A
- Changes
- Changes in potential energy
- Constant kinetic energy
4
Q
Graph of how internal energy varies with temperature
A
5
Q
Calculation for energy when temperature change
A
Q = mcΔθ
6
Q
Calculation for energy when state change
A
Q = ml
7
Q
Specific latent heat
A
Energy required to change the state of 1 kg of material without changing temperature
8
Q
Two types of latent heat
A
- Latent heat of fusion (solid to liquid)
- Latent heat of vaporisation (liquid to gas)
