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pro vyhledávání: '"John T.S Andrews"'
Publikováno v:
The Journal of Chemical Thermodynamics. 10:959-965
The heat capacity of diamantane, C 14 H 20 , has been measured by adiabatic calorimetry from 5 to 350 K. The heat capacity is generally sigmate except for a gradual thermal anomaly with a maximum at 35.7 K and an apparent entropy increment of only 0.
Adiabatic calorimetry of liquid crystals I. Di-(p-methoxyphenyl)-trans-cyclohexane-1,4-dicarboxylate
Autor:
W. E. Bacon, John T.S Andrews
Publikováno v:
The Journal of Chemical Thermodynamics. 6:515-523
We report adiabatic measurements of the heat capacity (300 to 550 K) of a zone-refined sample (purity 99.82 moles per cent) of a liquid crystal, di-( p -methoxyphenyl)- trans -cyclohexane-1,4-dicarboxylate ( DMC ). The transition temperatures, enthal
Publikováno v:
Thermochimica Acta. 14:99-111
High resolution NMR (proton) spectra have been obtained of the solid phase of tetra-n-hexyl ammonium perchlorate between 364 and 379 K. Since it is well known that high resolution spectra cannot be obtained on true solids, the existence of four well-
Publikováno v:
The Journal of Chemical Thermodynamics. 10:1023-1032
We report adiabatic measurements of the heat capacity of the “diamond molecule” diamantane (C 14 H 20 , purity 99.91 moles per cent, by fractional fusion) from 300 to 540 K. The transition temperatures, enthalpies, and entropies found in this res
Publikováno v:
The Journal of Chemical Thermodynamics. 10:949-958
We report the construction of a superambient temperature adiabatic heat-capacity calorimeter which has been successfully operated from 300 to 550 K. We detail results on the heat capacity of a portion of the Calorimetry Conference sample for α-Al2O3