The minimum miscibility pressure (MMP) is one of the crucial and substantial parameters in the gas injection projects for enhanced oil recovery (EOR). This parameter indicates the minimum pressure at constant temperature and composition conditions for reaching 100 percent of the oil production recovery which leads to a huge economic income. Therefore, an inaccurate prediction of the MMP may lea...

the density of state and the natural bond orbital calculations were carried out to study theoxidation of co on au14 nano cluster through two different mechanisms and determining the bestmechanism for the reaction. chemisorption of o2 and co on the nano cluster led to change in energy,density of state and its thermodynamic properties. we calculated the energy band gap between thehighest occupied...

Recently Khasare derived an equation of state for L-J fluid by modifying an expression for work done, obtained from partition function through perturbation approach .This is achieved by inserting at some fixed position in the m-component fluid, a single solute particle of radius ‘R’ in n-dimensions along with the necessary thermodynamic requirements. It was therefore thought worthwhile to under...

The thermodynamic behaviour of a relativistic perfect simple fluid obeying the equation of state p = (γ − 1)ρ, where 0 ≤ γ ≤ 2 is a constant, has been investigated. Particular cases include: vacuum(p = −ρ, γ = 0), a randomly oriented distribution of cosmic strings (p = −13ρ, γ = 2/3), blackbody radiation (p = 1 3ρ, γ = 4/3) and stiff matter (p = ρ, γ = 2). Fluids with γ < 1 become hotter when t...

The existing thermodynamics of the cosmological horizon in de Sitter spacetime is established in the micro-canonical ensemble, while thermodynamics of black hole horizons are established in the canonical ensemble. Generally in the ordinary thermodynamics and statistical mechanics, both of the micro-canonical and canonical ensembles yield the same equation of state for any thermodynamic system. ...

Thermodynamic properties of β-HMX crystal are investigated using the quasi-harmonic approximation and density functional theory within the local density approximation (LDA), generalized gradient approximation (GGA), and GGA + empirical van der Waals (vdW) correction. It is found that GGA well describes the thermal expansion coefficient and heat capacity but fails to produce correct bulk modulus...