IB Physics SL B.1.5 Kelvin temperature & kinetic energy
IB Physics SL B.1.5 Kelvin temperature & kinetic energy
Link kelvin temperature to average molecular kinetic energy, then use equations and speed-temperature graphs to compare gases.
How this is tested
- use Ek = 3/2 kBT with T in K to calculate the mean kinetic energy of one molecule
- choose the correct speed-temperature graph, using higher T to infer higher average molecular speed
- decide that two gases at the same temperature have equal average kinetic energy despite different masses