Scaling predictions for thermodynamical properties of finite-size liquid systems

The notion of spatial limitation of a system undergoing critical phenomena and phase transitions is presented. The scaling formulae for the singular part of the fluctuation free energy and correlation length for spatially limited liquid systems are analyzed. The conducted research supports the conclusion that reducing of the volume's size leads, after the decreasing of the correlation length, to decreasing of the susceptibility χ, which is equivalent to isothermal compressibility β_T for one-component liquid.