AbstractThe mean collision time 〈τC〉 and the mean durations of collision 〈τD〉 in liquid argon were calculated by a molecular dynamics computer simulation. The calculations were performed from the triple point temperature ofT= 83.81 K toT= 150 K. The collision ratesZwere obtained under isothermal, isochoric and isobaric conditions and the corresponding derivativesas well as the isokinetic coefficienthave been calculated for our model and for liquid cell models. The use of the coefficients thus introduced for the calculation of frequency factors in solution kinetics is discussed. A comparison with collision induced spectra shows that the calculated values of 〈τC〉 and 〈τD〉 are in agreement with experimental d