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  • second law  (2)
  • Springer  (2)
  • International Union of Crystallography (IUCr)
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  • Springer  (2)
  • International Union of Crystallography (IUCr)
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  • 1
    Electronic Resource
    Electronic Resource
    Concavity, superadditivity and the second law (1993)
    Springer
    Foundations of physics 6 (1993), S. 289-295 
    Details
    ISSN: 1572-9524
    Keywords: concavity ; superadditivity ; entropy ; second law
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Callen's discussion of the entropy maximum principle is extended to cover the case of negative absolute temperatures, and the consequences for the stability conditions of systems exhibiting such temperatures are examined. Further, a physical example is considered to illustrate the fact that the essence of the second law of thermodynamics must be concavity rather than superadditivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665733
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  • 2
    Electronic Resource
    Electronic Resource
    Qualms concerning the inflationary scenario (1992)
    Springer
    Foundations of physics 5 (1992), S. 191-196 
    Details
    ISSN: 1572-9524
    Keywords: inflationary scenario ; adiabatic Einstein equations ; second law ; entropy production ; relativistic thermodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that the release of the condition of adiabaticity is incompatible with the Einstein equations that are derived from the Robertson-Walker metric. Once dissipative processes are considered, the vanishing of the divergence of the mass-energy tensor is a combination of the first and second laws rather than being the relativistic analogue of the first law. Dissipative processes destroy isotropy and hence cannot be described by any standard model based on Robertson-Walker models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00682815
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