Equipartition Flashcards
(8 cards)
1
Q
What is the average energy for the equipartition theorem?
A
< E > = 1/2 kBT
2
Q
What is a degree of freedom?
A
An independent quadratic mode
3
Q
What is the average energy in the classical limit?
A
< E > = n/2 kBT
Where n is the degrees of freedom
4
Q
What is the equipartition theorem?
A
For a system in contact with a large reservoir at temperature T each independent quadratic mode contributes 1/2 kBT to the average energy
5
Q
What is the heat capacity at constant volume?
A
cV = (dU/dT)V = n/2 kB
6
Q
How many degrees of freedom are there for translational motion?
A
3 per mole
7
Q
How many degrees of freedom are there for vibrational motion?
A
2
8
Q
How many degrees of freedom are there for rotational motion?
A
2
