$[-/1$ Points$]$

SERCP$1128.$A$.$P$\mathrm{.}047.$

$($a$)$ How much energy is required to cause an electron in hydrogen to move from the $n=2$ state to the $n=3$ state? eV

$($b$)$ If the electrons gain this energy by collision between hydrogen atoms in a high temperature gas, find the minimum temperature of the heated hydrogen gas. The thermal energy of the heated atoms is given by $3k_B\frac{T}{2},$ where $k_B$ is the Boltzmann constant.

K

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