Energy of $10$ non rigid diatomic molecules at temperature $\mathrm{T}$ is :
  • A$\frac{7}{2} \mathrm{RT}$
  • B$70 \mathrm{~K}_{\mathrm{B}} \mathrm{T}$
  • C$35 \mathrm{RT}$
  • D $35 \mathrm{~K}_{\mathrm{B}} \mathrm{T}$
JEE MAIN 2024, Diffcult
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