1. The problem statement, all variables and given/known data Consider a system of 2 non interacting distinguishable particles in thermal equilibrium at temperature T, and which as two possible energy states available: E1 and E2>E1. How would you go about finding the average number of particles in energy level E1, and in hight T limit? 3. The attempt at a solution Is this equal to the ratio of its Gibbs function to the grand partition function? How does distinguishability affect the computation of the latter? Also how would this result change with a system at equilibrium with a reservoir at T and chemical potential μ? This seems like a standard SM problem but get can't get my head around it. Any help would be appreciated.