Experimental Measurements of the Resonant Vibrational Energy Transfer between Mode v3of CO2and N2

摘要

The rate of the resonant vibrationndash;vibration energyhyphen;transfer process between modengr;3of CO2and N2has been measured from 450deg;hyphen;2600deg;K by monitoring the infrared emission from modengr;3at 4.26mgr;behind incident shocks in CO2sngbnd;N2gas mixtures. The data are shown to be in agreement with recent laser fluorescent measurements from 300deg;ndash;1000deg;K. The combined data for the probability per collision are compared to theoretical calculations and indicate that below 1000deg;K the interaction is dominated by longhyphen;range forces and a probability inversely proportional to temperature is obtained, while above 1000deg;K the probability increases with temperature and the interaction is due to shorthyphen;range forces.