Critical behavior of one-component system with Yukawa interaction potential

It is shown that the liquid-gas phase transition exists in one-component system with potential Yukawa interaction. The value of the critical exponent $\beta$ of the order parameter is found. The relation between the potential parameters of Yukawa interaction and critical values of density, temperature and pressure is obtained. PACS: 51.30.+i: 64.10.+h; 05.70.Ce: 05.70.Fh; 05.70.Jk