# Statistical weight for a degenerate system

1. Mar 21, 2009

### Andrew_

1. The problem statement, all variables and given/known data

Find an expression of the statistical weight for a system of N particles of corresponding energy levels with 'gi' degeneracy.

2. Relevant equations

W = N! / No! N1!2! ...Ni!

3. The attempt at a solution

The expression is then :

W = N! goNo g1N1 g2N2 ... giNi / No! N1! N2! ...Ni!

However, I cant prove it. Can you help ?

Last edited: Mar 21, 2009