Consider nitric oxide $($NO$)$ in equilibrium at $850$ K$.$ What numerical percentage of the molecules have both $($simultaneously$)$ a rotational energy corresponding to the quantum level J $=1$ and a vibrational energy corresponding to the quantum state v $=0,$ irrespective of the orientation of the axis of rotation or of the state of translational or electronic energy. $($note: for NO $$r $=2\mathrm{.}5$ K and $$v $=2740$ K$)$