Global macroscopic properties are evaluated as a final assessment of the SurQCT model. In Fig. , the vibrational and rotational relaxation times are compared with the reference data from QCT calculations. These quantities are computed using the e-folding method from heat bath simulations that only include the energy transfer processes. As a result, any discrepancies in these comparisons stem from the errors in the predicted energy transfer rate coefficients. Fig. demonstrates excellent agreement between the SurQCT-and the QCT-based simulations, further validating the accuracy of the SurQCT energy transfer rate coefficients. The highest errors are encountered for vibrational relaxation time for T = 1, 500 K and are still within 10%. Another important QoI in the study of non-equilibrium chemistry is the QSS dissociation rate. This quantity is extracted as the weighted average of the StS dissociation rate coefficients based on the QSS population distribution. A comparison of the QSS and thermal dissociation rate coefficients is given in Fig. . Similarly to the other global kinetic properties, these quantities show excellent agreement.