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Standard chemical exergy of some elements and compounds on the planet earth

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  • Morris, David R.
  • Szargut, Jan

Abstract

Values of the standard chemical exergy of 49 elements, and some inorganic and organic compounds of those elements, are proposed. The values for 9 elements are based on the atmosphere as the reference substance; for 27 elements, values are based on the hydrosphere as the reference substance; for 13 elements, values are based on the lithosphere as the reference substance. Values of the standard chemical exergy of some inorganic compounds in the ideal aqueous solution of unit molarity are also presented. Amongst the compounds, negative values of the standard chemical exergy arise only for the nitrates of calcium, potassium and sodium. These compounds should form spontaneously but formation is kinetically blocked. It is recommended that the proposed values be adopted for exergy analysis calculations.

Suggested Citation

  • Morris, David R. & Szargut, Jan, 1986. "Standard chemical exergy of some elements and compounds on the planet earth," Energy, Elsevier, vol. 11(8), pages 733-755.
    • Handle: RePEc:eee:energy:v:11:y:1986:i:8:p:733-755
    DOI: 10.1016/0360-5442(86)90013-7
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