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Abstract
The heat capacity of vanadium has been measured by laser-flash calorimetry in the temperature region from 80 to 1000 K. The results are compared with available low- and high-temperature heat capacities, and revised thermodynamic values of vanadium are given. No heat-capacity anomaly has been found in the pure vanadium sample over the temperature range investigated, while a small heat-capacity discontinuity, less than 1.2 J · K −1 · mol −1, has been observed at 220 to 230 K on the same sample but electropolished before measurement. This anomaly disappeared after annealing at 1000 K in vacuo for 1 h and is attributable to the introduction of a small amount of hydrogen during electropolishing.
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