A linear variation of the thermal expansivity with the isothermal compressibility for ammonia solid III near the melting point
KOREAN JOURNAL OF CHEMICAL ENGINEERING, cilt.27, sa.1, ss.249-252, 2010 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 27 Sayı: 1
- Basım Tarihi: 2010
- Doi Numarası: 10.2478/s11814-009-0335-z
- Dergi Adı: KOREAN JOURNAL OF CHEMICAL ENGINEERING
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.249-252
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
The thermal expansivity alpha (p) is related to isothermal compressibility kappa (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 kappa (T) according to a power-law formula, a linear variation of alpha (p) with the kappa (T) is established here close to the solid-liquid transition in ammonia. Anomalous behavior of thermal expansivity alpha (p) and the isothermal compressibility kappa (T) near the melting pressure is indicative of the lambda-type transition in ammonia solid III.