Physics 2 Midterm - Part 1 of 3
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21. Kinetic Theory of Ideal Gases / Average Kinetic Energy of Gases / Problem 14
In a helium ion He+, the energy required to excite an electron from the ground state (𝑛 = 1) to the first excited state (𝑛 = 2) is 40.8 eV. Determine the temperature at which the average kinetic energy of a helium ion is sufficient to excite an electron from the 𝑛 = 1 state to the 𝑛 = 2 state. Use Boltzmann constant k = 8.617 × 10−5 eV/K.
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