Thermochemical study of the monobromonitrobenzene isomers

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

da Silva, MAVR (Autor) FCUP; Ana I M C L Lobo Ferreira (Autor) FCUP; Ana Filipa L. O. M. Santos (Autor) FCUP; Rocha, IM (Autor) Outra

Revista

Título: Journal of Chemical Thermodynamics

Vol. 42

Páginas: 169-176

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge - 16 Citações

Scopus - 12 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Físicas > Química > Química física

Outras Informações

ID Authenticus: P-003-9ED

DOI: 10.1016/j.jct.2009.06.008

Abstract (EN): The standard (p degrees = 0.1 MPa) molar enthalpies of formation. of the 2-, 3-, and 4-monobromonitrobenzene isomers, in the crystalline phase, at T = 298.15 K, were derived from the standard massic energies of combustion, in oxygen, at T = 298.15 K. measured by rotating bomb combustion calorimetry From the temperature dependence of the vapour pressures of these compounds, measured by the Knudsen effusion technique, their standard molar enthalpies of sublimation, at T = 298.15 K, were derived using the Clausius-Clapeyron equation. [GRAPHICS] The combination of the values of the standard molar enthalpies of formation in the crystalline phase, and of the standard molar enthalpies of sublimation. yielded the standard molar enthalpies of formation in the gaseous phase. The results were interpreted in terms of enthalpic increments, and compared with estimated Values applying the empirical scheme developed by Cox.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8