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Method for the Estimation of Standard Entropy of Crystal Phases at 298.15 K on the Limited Temperature Range of Heat Capacity Measurementsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 сентября 2015 г.
- Авторы: Uspenskaya I.A., Kulikov L.A.
- Журнал: Journal of Chemical and Engineering Data
- Том: 60
- Номер: 8
- Год издания: 2015
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 2320
- Последняя страница: 2328
- DOI: 10.1021/acs.jced.5b00217
- Аннотация: A method for estimating entropy of crystal phases at 298.15 K, when a direct calculation from heat capacity data is not possible due to a limited range of temperature for Cp measurements, is proposed. It was shown that a reasonable estimation of So298.15 for the substances with predominant lattice contribution can be achieved by approximation of heat capacities from “nitrogen” to room temperature by the combination of Einstein functions and by correction of the obtained entropy value with the scaling coefficient. The same result can be obtained in the presence of an additional contribution to the heat capacity, connected with the settling of upper energy levels if there are data for a priori estimation of the corresponding contribution.
- Добавил в систему: Успенская Ирина Александровна