$C{O_2}(O - C - O)$ is a triatomic gas. Mean kinetic energy of one gram gas will be (If $N-$Avogadro's number, $k-$Boltzmann's constant and molecular weight of $C{O_2} = 44$)
  • A$(3/88)NkT$
  • B$(5/88)NkT$
  • C$6/88NkT$
  • D$(7/88)NkT$
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