Standard molar enthalpy of formation, vapour pressures, and standard molar enthalpy of sublimation of benzanthrone

• Tipo: Artigo em Revista Científica Internacional
• Data: 1999

Autores

da Silva, MAVR (Autor) FCUP; Ferrao, MLCCH (Autor) Outra; Monte, MJS (Autor) FCUP; Goncalves, JM (Autor) FCUP; Jiye, F (Autor) Outra

Revista

Título: Journal of Chemical Thermodynamics

Vol. 31

Páginas: 1067-1075

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge - 20 Citações

Scopus - 22 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

Outras Informações

ID Authenticus: P-001-3R1

DOI: 10.1006/jcht.1999.0516

Abstract (EN): The standard (p(O) = 0.1 MPa) molar enthalpy of combustion at T = 298.15 K of crystalline benzanthrone was determined as Delta(c)H(m)(O) = -(8114.7 +/- 2.0) kJ.mol(-1) by static-bomb calorimetry, and the standard molar enthalpy of formation of the crystal at T = 298.15 K was derived as Delta(f)H(m)(O)(cr) = -(4.1 +/- 3.0) kJ.mol(-1). Vapour pressure as a function of temperature was measured using the mass-loss Knudsen effusion technique, from which the standard molar enthalpy of sublimation at T = 298.15 K was derived as Delta(cr)(g)H(m)(O)= (126.6 +/- 0.6) kJ.mol(-1). The standard molar enthalpy of sublimation at T = 298.15 K was also measured by the quartz oscillator method, Delta(cr)(g)H(m)(O) (129.7 +/- 2.1) kJ.mol(-1) (C) 1999 Academic Press.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9