6 Equations of state from analytically solvable integral equation approximations

摘要: Publisher Summary Modern statistical-mechanical theories of liquids and dense fluids are based on the calculation distribution functions, which describe average structure system. The major theoretical question to be answered is given intermolecular potential between molecules in system, what will system at a thermodynamic state point. Usually it assumed that pair-wise additive, with consequence only pair needed all properties interest. Although assumption additivity not valid high densities low temperatures, proves good approximation most instances. Intermolecular potentials frequently parameterized take into account higher-order interactions. This chapter focuses integral-equation approach determining fluid therefore its equation state.