The Maximum Limit of Rotational Energy Transfer in Molecular Collisions and the Hard Ellipsoid Potential Model

The maximum limit of rotational energy transfer was investigated over a wide range of collision energy, reduced mass of the system, potential functions, and potential parameters for the N$\text{}_{2}$-Ne system. The classical limit of maximum rotational energy transfer, (ΔE)$\text{}_{max}$, was reviewed for a hard ellipsoid potential model. It was found that (ΔE)$\text{}_{max}$ predicted by the hard ellipsoid model is comparable to a well-known parameter |ΔE|* given by the power-gap law. The numerical equivalence of |ΔE|* with (ΔE)_max suggests that the value of ΔE)$\text{}_{max}$ given by hard ellipsoid potential model can be used as one parameter |ΔE|* of the power-gap law.