A PROPERTY OF THE SATURATED VAPOR PRESSURE: RESULTS FROM EQUATIONS OF STATE

作者：Tian Jianxiang^*; Jiang Hua; Xu Yi

来源：Modern Physics Letters B, 2009, 23(26): 3091-3096.

DOI：10.1142/S0217984909021156

• Saturated vapor pressure
• equations of state

Experimentally, a maximum point in the curve of the saturated property psi = (1-T(r))P(r) versus the saturated temperature was postulated (High Temp.-High Press. 26 (1994) 427). Here, T(r) is the saturated temperature reduced by the critical temperature and P(r) is the saturated pressure reduced by the critical pressure. Later, this behavior was applied to assure the saturated vapor pressure critical amplitudes (Appl. Phys. Lett. 90 (2007) 141905). In this paper, we indicate that theory of equation of state (EOS) can predict this maximum point. The EOSs we study are the combinations of the hard sphere repulsions and some normally used attractions such as the Redlich-Kwong attraction. We find the EOSs with Redlich-Kwong attractive terms give out the results in the experimental range.

• 出版日期2009-10-20
• 单位大连理工大学; 曲阜师范大学; 临沂大学