150) Calculate the temperature required to have 25% of H atoms in the first excited state and 75% in the ground state considering kB = 8.6 x 10-5 eV/K, E2 - E1 = 10.2 eV and In 3 = 1.0986. (Symbols/notations assume their usual meaning) A) = 10 K B) = 105 K C)=106 K D) = 1010 K
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