Physics 335—Thermal Physics
Homework Assignment #4
Due Wednesday, September 23, 2026, 9:30 a.m.
Problems 3.7, 3.8, 3.10, 3.14, and 3.20. (20 pts. each).
Hints: For Problem 3.14, you may assume that the entropy is 0 at T = 0K. For Problem 3.20, you may use the result of Problem 3.23 for the entropy. Note too that the maximum value (when x → 0) is S = Nk ln2.