Heat capacity and entropy of rutile (TiO 2 ) and nepheline (NaAlSiO 4 )
Source abstract
Abstract
From heat capacities measured adiabatically at low temperatures, the standard entropies at 298.15 K of synthetic rutile (TiO2) and nepheline (NaAlSiO4) have been determined to be 50.0 ± 0.1 and 122.8 ± 0.3 J mol−1 K, respectively. These values agree with previous measurements and in particular confirm the higher entropy of nepheline with respect to that of the less dense NaAlSiO4 polymorph carnegieite.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Thermal and Kinetic Analysis · Chemical Thermodynamics and Molecular Structure · Crystal Structures and Properties
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