A K Singh
Articles written in Pramana – Journal of Physics
Volume 17 Issue 6 December 1981 pp 461-468 Solid State Physics
Volume compression of CuCl to 7 GPa
The unit cell volume of CuCl as a function of pressure has been measured up to 7 GPa (giga Pascals). The compression behaviour is quite normal. The analysis of the compression data gives 40·3±1·5 GPa for the bulk modulus of the zinc blende phase. The zinc blende phase transforms to a tetragonal phase at 5·5 GPa, the volume change associated with the transformation being 12%. A comparison of the bulk modulus of CuCl with those of CuBr and CuI indicates that an anomaly exists in this group.
Volume 28 Issue 4 April 1987 pp 343-353 Statistical Physics
Thermodynamic properties of molecular fluid mixtures of hard ellipsoids
Thermodynamic properties of molecular fluid mixtures of hard ellipsoids are calculated. Numerical results are given for equation of state and excess-free energy of the binary mixture of both additive and non-additive hard ellipsoids. It is found that the equation of state and free energy of mixtures increase with increase of anisotropy parameter
Volume 34 Issue 2 February 1990 pp 123-131
Thermodynamic properties of hard ellipsoid square-well fluid
The perturbation theory with non-spherical reference system is used for molecular fluid with angle-dependent square-well type potential. Simple analytic expressions are given for the thermodynamic properties such as the equation of state, excess free energy per particle, internal energy and internal heat capacity. The effects of anisotropy on the thermodynamic properties are discussed. The anisotropy effects increase with increase of density and decrease of temperature and depends on the anisotropy parameter
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