Question

STATISTICAL MECHANICS. EXPLAIN HOW TO GO FROM STEP 4 TO STEP 5 AND THEN TO STEP 6. DETAILS ARE REQUIRED. NOTE THAT THE MICROSTATES ARE $\sigma$ : -1, 0, 1.

Thanks.

The energy of a system is:

Ν Ν Ε(σ)Σσ+αΣσ i=1 i=1

We want to calculate:

So the following is done:

EXPLAIN HOW TO GO FROM STEP 4 TO STEP 5 AND THEN TO STEP 6. DETAILS ARE REQUIRED.

Answer 1

2 с. 26, - двет} + вб - в сът - 5, -1, 0, + - - 5, 106, - авг - е {e - Ад гар te' ti)-а терео) «1949)-«рсо" - ( 0) - ав () 3 {0-1) - PC)*} + e { -(о) - ав (6)") + e (60) -- «в (73 (-д - ар). (Р – «) е (-е - а) +1+e (6- 4P) е в «Р - e-p - ор 1+ер- apte-p-ap . . . . .(s) едр (ер- аср - B - ар) seap епр - ! (item-aB te Brab) FeB Le B eaßtef TEB....