CMBStatisticsEP2F2011 - 1 ME 501 Example Problem: CMB...

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1 ME 501 Example Problem: CMB Statistics The system shown below has energy levels of jB k c h 0 K, 5 K, 10 K, 150K, and 200K. The degeneracy of each of three lower levels is 10 8 and the two upper levels is 10 10 . The system has only these energy levels; there are no translational, rotational, or vibrational modes. The number of particles in the assembly is 10 5 . (a) Calculate the energy and entropy of the assembly at a temperature of 50 K, assuming
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