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Shock-tube study of relaxation in HCN
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10.1063/1.2968611
/content/aip/journal/jcp/129/7/10.1063/1.2968611
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/7/10.1063/1.2968611
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

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).

Image of FIG. 2.
FIG. 2.

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).

Image of FIG. 3.
FIG. 3.

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.

Image of FIG. 4.
FIG. 4.

Density change ratio of integrated gradients to thermodynamic calculation : 20% (●) fast process, 5% (◼) fast process, 20% (○) slow process, and 5% (◻) slow process (see text).

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/content/aip/journal/jcp/129/7/10.1063/1.2968611
2008-08-19
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Shock-tube study of relaxation in HCN
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/7/10.1063/1.2968611
10.1063/1.2968611
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