Problem 4.38. Two magnetic systems in thermal contactConsider two isolated systems of noninteracting spins with NAenergies are EA = -2µB and Eg = -2µB.= 4 and NB= 16. Their initial(a) What is the total number of microstates available to the composite system?(b) If the two systems are now allowed to exchange energy with one another, what is the probabilitythat system A has energy EA?(c) What is the mean value of EA and its relative fluctuations? Calculate the analogous quantitiesfor system B.

Given: Number of States of A,NA=4Number of States of B,NB=16Initial Energies of A,EA=2μBInitial…

Answered: Problem 4.38. Two magnetic systems in…

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