Question $21(4$ points$)$

What is the average kinetic energy of a nitrogen molecule in the air in a room in which the air temperature is $17\mathrm{.}0C?$

$5\mathrm{.}00{10}^{-21}J$

$7\mathrm{.}00{10}^{-21}J$

$6\mathrm{.}01{10}^{-21}J$

$4\mathrm{.}00{10}^{-21}J$

$9\mathrm{.}00{10}^{-21}J$