Question

An infinite one-dimensional lattice extends along the x-axis. At each lattice site, there exists an ion with spin 1/2. The spin can point either in the +z or -z direction only. Let $S_P$, $S_F$, and $S_A$ denote the entropies of paramagnetic, ferromagnetic, and antiferromagnetic configurations, respectively. Which of the following relations is/are true?

• A. $S_P\gt S_F$
• B. $S_A\gt S_F$
• C. $S_A = 4 S_F$
• D. $S_P\gt S_A$

Answer 1

Answer: (A), (D)

$S_P\gt S_F$

Answer 2

The correct Answers are (A) :$S_P\gt S_F$ ,(D):$S_P\gt S_A$