J.J Dannenberg, D. Leotard, P. Hal Vick, and I.C. Rayez (J. Phys. Chem. 100, 9631 (996)) carried out theoretical studies of organic molecules consisting of chains of unsaturated four-membered rings. The calculations suggest that such compounds have large numbers of unpaired spins, and that they should therefore have unusual magnetic properties. For example, the lowest-energy state of the five-ring compound CnH14 (4) is computed to have S = 3, but the energies of S = 2 and S = 4 structures are each predicted to be 50 k] mol:" higher in energy. Compute the molar magnetic susceptibility of these three low-lying levels at 298 K. Estimate the molar susceptibility at 298 K if each level is present in proportion to its Boltzmann's factor (effectively assuming that the degeneracy is the same for all three of these levels).