Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Imprimir: 1093-3611
ISSN On-line: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v2.i4.40
pages 483-496

MIXING ENTHALPY OF TbCl3- MCI LIQUID MIXTURES (M = Li, Na, K, Rb, Cs)

RESUMO

The molar enthalpies of mixing, ΔmixHm in the binary liquid systems TbCI3 - MCI ( M = Li, Na, K, Rb, Cs ) have been measured with a Calvet - type high temperature microcalorimeter over the entire composition range with an accuracy of about 6%. Mixing of the two liquid components was achieved by using the "break-off ampoule technique". All the investigated systems show negative enthalpies of mixing with a minimum value of approximately -2.4, -9.9, -20.5, -26.0 and -28.8 kJ mol−1, for M = Li, Na, K, Rb and Cs, respectively occuring at nearly the same molar fraction of TbCl3, xTbCl3 ≈ respectively, at XTbCl3 ∼0.4. The molar enthalpies of formation ΔformHm (3MCl,TbCl3,1) for M = Li, Na, K at 1109 K and for M = Rb and Cs at 1175 K, arising from the reaction 3MC1 (1) +TbC13 (1) = (3MCl,TbCl3) (1) are found to be -9.6, -36.1, -72.6, -87.4 and-97.6 kJ mol−1, respectively. The least-squares coefficients A,B, C, D in the equation λ (kJmol−1)= A + Bx + Cx2 + Dx3 where λ is an interaction parameter are also reported.


Articles with similar content:

Mixing enthalpy of TbCl3-MCl liquid mixtures (M = Li, Na, K, Rb, Cs)
Advances in Molten Salts, Vol.0, 1998, issue
L. Rycerz, Marcelle Gaune-Escard
Solution of Nonlinear Singular Integral Equation Governing Amplitude-Phase Relation in Signal Theory
Telecommunications and Radio Engineering, Vol.55, 2001, issue 10-11
O.V. Gunko
Integral Representation of Solutions to the Non-Linear Singular Integral Equation Governing Amplitude-Phase Relations in the Communication Theory
Telecommunications and Radio Engineering, Vol.57, 2002, issue 4
O. V. Gunko
Mutual Diffusion Coefficients of the Systems (Rb,Ag)Cl and (Alk,Ag)N03 with Alk = Li, Na, K, Rb, and Cs, Measured with Interferometric Methods
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.2, 1998, issue 4
Axel Leuchter
WARME UND STOFFAUSTAUSCH BEI DER BILDUNG VON NICHT-NEWTON SCHER FLUSSIGKEITSTROPFEN
International Heat Transfer Conference 4, Vol.21, 1970, issue
Judit J. Timko