| Issue |
Korean Journal of Chemical Engineering,
Vol.27, No.1, 249-252, 2010
Vol.27, No.1, 249-252, 2010
A linear variation of the thermal expansivity with the isothermal compressibility for ammonia solid III near the melting point
The thermal expansivity α(p) is related to isothermal compressibility κ(T) at various pressures for constant temperatures of 254.6, 274 and 297.5 K close to the melting pressure in ammonia solid III. By analyzing the experimental data for κ(T) according to a power-law formula, a linear variation of α(p) with the κ(T) is established here close to the solid-liquid transition in ammonia. Anomalous behavior of thermal expansivity α(p) and the isothermal compressibility κ(T) near the melting pressure is indicative of the λ-type transition in ammonia solid III.
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