Solution Found!
Show that the entropy of a two-state paramagnet, expressed
Chapter 3, Problem 23P(choose chapter or problem)
QUESTION:
Problem 23P
Show that the entropy of a two-state paramagnet, expressed as a function of temperature, is S = Nk[ln(2 cosh x) – x tanh x], where x = μB/kT. Check that this formula has the expected behavior as T → 0 and T → ∞.
Questions & Answers
QUESTION:
Problem 23P
Show that the entropy of a two-state paramagnet, expressed as a function of temperature, is S = Nk[ln(2 cosh x) – x tanh x], where x = μB/kT. Check that this formula has the expected behavior as T → 0 and T → ∞.
ANSWER:
Step 1 of 6
The magnetization for two states paramagnet is,
Magnetization is,
Equating equation (1.1) and (1.2)
Let , and ,