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The standard molar enthalpy of formation of 2,3-dichlorodibenzo-p-dioxin

✍ Scribed by T.S. Papina; V.P. Kolesov; V.A. Lukyanova; V.F. Golovkov; C.A. Chernov; V.P. Vorobieva

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
129 KB
Volume
30
Category
Article
ISSN
0021-9614

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✦ Synopsis

The standard molar enthalpy of combustion of crystalline 2,3-dichlorodibenzo-p-dioxin was T . y1 Ž . determined by rotating-bomb calorimetry: ⌬ H s y 5406.4 " 6.6 kJ mol . Using this c m T . y1 Ž . result and the standard molar enthalpy of sublimation, ⌬ H s 108.6 " 1.0 kJ mol , sub m

the values of the standard molar enthalpies of formation of 2,3-dichlorodibenzo-p-dioxin in .

y1 Ž . Ž the crystalline and gaseous states were found to be y 220.5 " 6.8 kJ mol and y 111.9 " . y1 . 6.9 kJ mol , respectively. The standard molar enthalpy of formation of gaseous 2,3,7,8-T . y1 Ž . tetrachlorodibenzo-p-dioxin was estimated: ⌬ H g f y164.6 kJ mol .

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