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Calcite-Aragonite Equilibrium

✍ Scribed by Simmons, G.; Bell, P.


Book ID
121169608
Publisher
American Association for the Advancement of Science
Year
1963
Tongue
English
Weight
391 KB
Volume
139
Category
Article
ISSN
0036-8075

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The enthalpy of calcite has been measured directly between 973 K and 1325 K by transposed-temperaturedrop calorimetry. The excess enthalpy has been analysed in terms of Landau theory for this tricritical phase transition. The zero-point enthalpy and entropy allow estimates of the parameters a and C