lambda-phase transitions in ice Ih near the melting point

Date

2007-01-01

Author

Yurtseven, Hasan Hamit
Salihoglu, S.
Oe. Tari, Oe. Tari
Akkoek, B.
Akin, F.
Durmaz, S.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

104
views

0
downloads

This study gives our predictions for the thermal expansivity alpha(p), isothermal compressibility kappa(T), and specific heat Cp near the melting point for ice Ih. We calculate those thermodynamic quantities as functions of temperature and pressure near the melting point using the experimental data for the thermal expansivity as a function of pressure from the literature. The Pippard relations are validated by plotting C-p against alpha(p) and also alpha(p) against kappa(T) linearly close to the melting point in ice Ih. We deduce the values of the slope partial derivative P-m/partial derivative T from those linear plots, which are very close to the experimental value obtained from the P-T phase diagram of ice Ih along the melting curve.

Subject Keywords

General Chemistry, General Chemical Engineering

URI

https://hdl.handle.net/11511/43521

Journal

CHEMICAL ENGINEERING COMMUNICATIONS

DOI

https://doi.org/10.1080/00986440701215556

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Modified Pippard relationship describing the Raman frequency shifts of the rotatory lattice mode of ammonia solid II in the vicinity of its melting point Karacali, H; Yurtseven, Hasan Hamit (Springer Science and Business Media LLC, 2005-11-01) We relate in this study the thermal expansivity, alpha(p), to the Raman frequency shift (1/V)(delta V/delta P)(T) for the rotatory lattice (librational) mode in ammonia solid II near its melting point. We have used our calculated Raman frequencies of this mode for pressures of 3.65, 5.02 and 6.57 kbars for this crystalline system. The values of the slope, dP(m)/dT, which we deduced from our spectroscopic relation, are compared with those obtained experimentally. In particular, our computed slope value for t...
Calculation of Detonation Properties of Gaseous Explosives Using Generalized Reduced Gradient Nonlinear Optimization Ulaş, Abdullah (Wiley, 2011-08-01) In this paper, a study on the development of a numerical modeling of the detonation of C-H-N-O-based gaseous explosives is presented. In accordance with the numerical model, a FORTRAN computer code named GasPX has been developed to compute both the detonation point and the detonation properties on the basis of Chapman-Jouguet (C-J) theory. The determination of the detonation properties in GasPX is performed in chemical equilibrium and steady-state conditions. GasPX has two improvements over other thermodyna...
Kinetic analysis of DSC and thermogravimetric data on combustion of lignite Kök, Mustafa Verşan (Springer Science and Business Media LLC, 1996-06-01) Thermal analysis increasingly being used to obtain kinetic data relating to sample decomposition. This work involves a comparative study of several methods used to analyse DSC and TG/DTG data obtained on the oxidation of Beypazari lignite. A general computer program was developed and the methods are compared with regard to their accuracy and the ease of interpretation of the kinetics of thermal decomposition. For this study, the ratio method was regarded as the preferred method, because it permits the estim...
Comparison of Fenitrothion and Trifluralin Adsorption on Organo-Zeolites and Activated Carbon. Part II: Thermodynamic Parameters and the Suitability of the Kinetic Models of Pesticide Adsorption LÜLE ŞENÖZ, Güzide Meltem; Atalay, Mustafa Ümit (Informa UK Limited, 2014-07-04) The suitability of two kinetic models and the thermodynamic parameters of pesticide adsorption were investigated based on obtained data of previous studies. Kinetic evaluation indicated that the pesticides adsorption on adsorbents followed the pseudo-second-order model. Gibbs free energy (Delta G degrees), enthalpy (Delta H degrees), and entropy (Delta S degrees) were calculated for thermodynamic parameters by using linearized Arrhenius equation. The results indicated that the sorption process of fenitrothi...
Mathematical modeling of thermal decomposition of coal Guruz, GA; Uctepe, U; Durusoy, T (Elsevier BV, 2004-06-01) Pyrolysis, as a first step in all thermochemical coal conversion processes, has been investigated in detail over the years in order to evaluate the kinetic data and to establish reliable models for the complex reaction scheme. Since coal pyrolysis is not a single reaction but rather a multiplicity in different time intervals for isothermal pyrolysis, or in different time and temperature intervals for the case of heat-up, any set of parameters cannot be expected to represent data accurately over a wide range...

Citation Formats

H. H. Yurtseven, S. Salihoglu, O. T. Oe. Tari, B. Akkoek, F. Akin, and S. Durmaz, “lambda-phase transitions in ice Ih near the melting point,” CHEMICAL ENGINEERING COMMUNICATIONS, pp. 913–923, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43521.