CO_2／He二元气体混合物维里系数的研究

Study of Virial Coefficients for CO 2/He Binary Gas Mixture

根据Ｂｕｒｎｅｔ流程测定了ＣＯ２／Ｈｅ二元体系在２５℃、６０℃、１００℃和１５０℃四个温度下纯物质和等分子混合物的Ｐ－Ｖ－Ｔ关系，采用Ｓｉｌｂｅｒｂｅｒｇ法确定了该体系纯物质和混合物的第二、第三维里系数以及混合物的交叉第二维里系数。

The P-V-T relations of pure substances and equimolar mixture for CO 2/He binary system were measured at temperatures of 25℃ 60℃ 100℃ and 150℃ with Burnett method. The second and third Virial Coefficients of the pure substances and mixture and the mixed second Virial Coefficients were determinated by Silberberg method. These results can be used to calculate other thermodynamic properties.