2. For a certain system, the energy levels are given by J()+1) EJ 21 with degener 9 = (2+1) i. Please expuess the fraction of molecules in the Ith level (denoted as f) in torns of 9 and dc / given temperature T. ii. Please mot qualitatively fj as function 01). m. Please show the math procedure on how to obtain the most probable rotational quantum zvember J? (here most probable quantum number means that most particles would tend to occupy that particular energy level