NEET Physics Kinetic Theory of Gases Questions Solved

${\mathrm{CO}}_2\left(\mathrm{O}-\mathrm{C}-\mathrm{O}\right)$ 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 ${\mathrm{CO}}_2=44$)

1. $\left(3/88\right) \mathrm{NkT}$                             

2. $\left(5/88\right) \mathrm{NkT}$

3. $\left(6/88\right) \mathrm{NkT}$                             

4. $\left(7/88\right) \mathrm{NkT}$