| Comparison |
Internal energy |
Temperature |
| Definition |
Total kinetic and potential energy of all the particles |
A measure of the average kinetic energy of the particles |
| Depends on the mass? |
- Yes
- it increases with the number of particles
|
No |
| Unit |
Joule (J) |
Degree Celsius (°C) or kelvin (K) |
Example→a large pot with 5 kg of water at 50 °C has more internal energy than a cup with 0.2 kg of water at 80 °C, because the pot contains far more particles, even though the water in the cup has the higher temperature.