  In this article, we implement a recently developed non-equilibrium chemical
kinetics model \cite{singhmodeldevelopment2019} based on \textit{ab initio}
simulation data and perform verification studies. Direct molecular simulation
data is used to verify the predictive capabilities of the model. Using the
model, dominant physics such as need for a rotational energy equation, and the
quantitative role of non-Boltzmann effects are identified. Based on the
analysis and reasonable assumptions, a simplified model for implementation into
large-scale CFD simulations is proposed. Without incurring additional
computational cost, the model can be used in existing flow solvers to analyze
hypersonic flows.
