(a) the grand partition function for a single particle by: state in a system of bosons is given z, =-m ,β(μ-ε, )η e discuss the constraint on the chemical potential u, and show that, provided that this constraint is satisfied, the mean occupation number of the i single particle state in is given by [7 marks] (b) in the discussion of the physical properties and behaviour of he2, equation we derived the 3/2 2n(2m) h23 epe-)1 e -rig- where n is the number of atoms in the system. discuss the meaning and origin of each of the contributions to n in this equation