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Reconciliation of calorimetrically and spectroscopically derived standard entropies for the six dimethylpyridines between the temperatures 250 K and 650 K: a stringent test of thermodynamic consistency

โœ Scribed by R.D. Chirico; T.D. Klots; S.E. Knipmeyer; A. Nguyen; W.V. Steele


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

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โœฆ Synopsis


Reconciliation of standard entropies โŒฌ S cal derived from calorimetric and thermophysical 0 m T T ลฝ . property studies with standard entropies โŒฌ S stat derived with assigned vibrational spectra 0 m

and the methods of statistical mechanics is used to demonstrate consistency between ลฝ thermophysical properties for the six dimethylpyridines Chemical Abstracts registry numbers:


๐Ÿ“œ SIMILAR VOLUMES


Thermodynamic properties of the methylpy
โœ R.D. Chirico; S.E. Knipmeyer; W.V. Steele ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 233 KB

Heat capacities and enthalpy increments between the temperatures 6.4 K and 320 K were determined for 4-methylpyridine (Chemical Abstract registry number 108-89-4) by adiabatic calorimetry. Results for temperatures โ‰ฅ 20 K were found to be in excellent accord with literature values; however, accord fo

Thermodynamic properties of the methylpy
โœ R.D. Chirico; S.E. Knipmeyer; A. Nguyen; W.V. Steele ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 556 KB

Results are reported for measurements leading to the calculation of standard thermodynamic properties for temperatures from T = 250 K to T = 560 K for the methylpyridines (Chemical Abstracts registry numbers: 4-methylpyridine, 108-89-4; 2-methylpyridine, 109-06-8; 3-methylpyridine, 108-99-6). The st