The average thermal energy for a mono$-$atomic gas is : $\left( k _{ B }\right.$ is Boltzmann constant and $T ,$ absolute $e$. temperature)
  • A$\frac{7}{2} k _{ B } T$
  • B$\frac{1}{2} k _{ B } T$
  • C$\frac{3}{2} k _{ B } T$
  • D$\frac{5}{2} k_{B} T$
NEET 2020, Easy
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