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Enthalpy of formation of La-Rh (lanthanum-rhodium) systems

  • F. Predel
Part of the Physical Chemistry book series (volume 12D)

Abstract

This chapter provides the enthalpy of formation of La-Rh (lanthanum-rhodium) systems.

Thermodynamics

On the basis of high-temperature direct synthesis calorimetry at 1473 ± 2 K Selhaoui et al. [93Sel] have determined standard enthalpies of formation of two intermediate compounds in the La-Rh system. The values obtained are given in Table 1.
Table 1

La-Rh. Standard enthalpies of formation of intermediate phases [93Sel]

Phase

ΔHS

[kJ g-at−1]

LaRh2

−57.5 ± 1.7

LaRh

−56.3 ± 2.3

Symbols and abbreviations

Short form

Full form

ΔHS

integral enthalpy of formation of a solid alloy

References

  1. [93Sel]
    Selhaoui, N., Kleppa, O.J.: J. Alloys Comp. 191 (1993) 155CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • F. Predel
    • 1
  1. 1.Max-Planck-Institut für FestkörperforschungStuttgartGermany

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