Ultra-relativistic particle with energy epsilon and momentum p is described by epsilon=cp. Find average energy E(T) of gas which consists of particles described above.
So i think i should use this kind of equations(please use the link below)
So i know the general form of Partition integral and i think i could calculate the average energy using Helmholtz formula.
The problem now is how to represent the Partition integral according to my problem.
could someone please help me?
P.s. I apologize for using image instead of Latex( which does not work for me)