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Asked Oct 13, 2019
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Hydrogen atoms in the atmosphere of the sun can exist in different energy states. The difference between the lowest energy state (the ground state) and the second to lowest energy state (the first excited state) is about 2.5 eV.  The temperature of the sun’s atmosphere is about  5800 K (so kBT = 0.5 eV).  What will be the ratio of the number of atoms in the first excited state divided by the number of atoms in the ground state?

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