Two examples of LS raw signals (upper), i.e., unmodified recordings of split photodiode voltages, together with corresponding semilog plots of derived density gradients (lower), in 20% and 5% at low pressures showing relaxation gradients (○) for the conditions cited in the inset. The straight lines are fits of the initial fast exponential relaxation (see text).
Two examples of LS voltage raw signals (upper) (note Fig. 1) and their corresponding semilog plots (lower) in 20% and 5% for high pressures, showing relaxation gradients (○) for the conditions shown in the inset. The straight lines are fits of the slow exponential relaxation (see text).
Landau–Teller plot of vibrational relaxation times for 20% (●) fast process, 5% (◼) fast process, 20% (○) slow process, and 5% (◻) slow process. The solid lines show a least-squares fit for both the 20% and 5% data and the dashed lines and dotted lines relaxation times for pure HCN and HCN dilute in Kr derived from the separation between the two mixtures. The temperature region above was inaccessible (see text) and the two slow-process (upper) lines are simply taken to be parallel.
Density change ratio of integrated gradients to thermodynamic calculation : 20% (●) fast process, 5% (◼) fast process, 20% (○) slow process, and 5% (◻) slow process (see text).
Article metrics loading...
Full text loading...