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Consider a rigid lattice of distinguishable spin 1/2 atoms in a magnetic
field. The spins have two states, with energies -HọH and +µoH for spins up
(1) and down (4), respectively, relative to H. The system is at temperature
Т.
(a) Determine the canonical partition function z for this system.
(b) Determine the total magnetic moment M = µo(N+ – N-) of the
%3D
system.
(c) Determine the entropy of the system.

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