Measured enthalpy and derived thermodynamic properties of alpha beryllium nitride, Be3N2, from 273 to 1200 K
- 1 September 1969
- journal article
- Published by National Institute of Standards and Technology (NIST) in Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry
- Vol. 73A (5) , 471-477
- https://doi.org/10.6028/jres.073a.036
Abstract
The relative enthalpy of a sample of alpha beryllium nitride, Be3N2, of 95 percent purity was precisely measured over the temperature range 273 to 1173 K using a drop calorimetric method. Corrections were applied for the impurities, and the resulting heat capacity-temperature function was required to join smoothly that from recent precise NBS adiabatic calorimetry which covered the range 20 to 315 K. The enthalpy, heat capacity, entropy, and Gibbs free-energy function were computed from empirical functions of temperature and tabulated from 273 to 1200 K.Keywords
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