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1957•The Journal of Chemical PhysicsRequires access

Heat Capacity of Holmium from 15 to 300°K

B. C. Gerstein, Maurice Griffel, L. D. Jennings, R Eric Miller, R. E. Skochdopole, F. H. Spedding

Open publisher page 61 citations

Abstract

The heat capacity of holmium has been measured over the range 15 to 300°K. Two maxima have been observed which occur at 19.4 and 131.6°K. The one at the lower temperature exhibits a dependence on the thermal history of the sample and this dependence was investigated. The thermodynamic functions have been tabulated and a correlation made of the contributions to the entropy at room temperature. The value of S0298.16 is 17.97 cal (°K)—1 (g atom)—1 to which the magnetic contribution is R ln (2J+1).

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What this paper is about

The heat capacity of holmium has been measured over the range 15 to 300°K. Two maxima have been observed which occur at 19.4 and 131.6°K. The one at the lower temperature exhibits a dependence on the thermal history of the sample and this dependence was investigated. The thermodynamic functions have been tabulated and a correlation made of the contributions to the entropy at room temperature. The value of S0298.16 is 17.97 cal (°K)—1 (g atom)—1 to which the magnetic contribution is R ln (2J+1).

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Available abstract

The heat capacity of holmium has been measured over the range 15 to 300°K. Two maxima have been observed which occur at 19.4 and 131.6°K. The one at the lower temperature exhibits a dependence on the thermal history of the sample and this dependence was investigated. The thermodynamic functions have been tabulated and a correlation made of the contributions to the entropy at room temperature. The value of S0298.16 is 17.97 cal (°K)—1 (g atom)—1 to which the magnetic contribution is R ln (2J+1).

Key concepts: Holmium, Heat capacity, Specific heat, Thermodynamics, Maxima, Atmospheric temperature range, Entropy (arrow of time), Chemistry

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