Vapor pressure of methylammonium halides. Part II: Vapor pressure and standard entropy of methylammonium bromide
| Autor: | A. Yu. Zuev, Dmitry S. Tsvetkov, Maxim O. Mazurin, Dmitry Malyshkin, Vladimir V. Sereda, I.L. Ivanov |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Standard molar entropy Vapor pressure Enthalpy Thermodynamics Halide 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Standard enthalpy of formation 010406 physical chemistry 0104 chemical sciences chemistry.chemical_compound chemistry Bromide Physical and Theoretical Chemistry 0210 nano-technology Instrumentation |
| Zdroj: | Thermochimica Acta. 674:58-62 |
| ISSN: | 0040-6031 |
| DOI: | 10.1016/j.tca.2019.02.008 |
| Popis: | The equilibrium vapor pressure of methylammonium bromide was measured as a function of temperature in the range of 433–503 K. Standard enthalpy and entropy of sublimation of CH3NH3Br at 298.15 K and 1 atm were determined as (196.7 ± 2.8) kJ·mol−1 and (280.0 ± 5.6) J·mol−1 K−1, respectively. The measured value of sublimation enthalpy was found to be in agreement with that directly calculated from the available thermodynamic data. Standard entropy of the crystalline CH3NH3Br at 298.15 K was determined for the first time as (160.2 ± 5.6) J·mol−1 K−1. |
| Databáze: | OpenAIRE |
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