A Modified General Corresponding States Equation for Polar Liquid Mixtures

  • Chi Zheng
  • Peimin Tang


Great attention has been paid to the use of corresponding states principle for predicting the properties of fluids.The equation proposed by Pitzer et al.[l], introducing ascentric factor (ω) as a third parameter, is mostly well known. As (ω) accounts mainly for the shape and size of a molecule, so Pitzer’s equation gives relatively large deviations for polar fluids with dipole moments. In view of this problem, several corresponding states equation with a fourth parameter have been developed. Among these, the one with reduced dipole moment (µR,) proposed by O’Connell and Prausnitz [2] has some theoretical ground. But, because µR enters as a logarithm term in their equation for calculating the second virial coefficent, they include a factor of 10 in5 in µR,thus their equation has limitations. Recently, Wang Rengyoan[3] has made rather systematic review of the development of corresponding states principle.


Thermal Conductivity Liquid Mixture Polar Component Binary Liquid Mixture Thermal Conductivity Data 
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Copyright information

© Purdue Research Foundation 1989

Authors and Affiliations

  • Chi Zheng
    • 1
  • Peimin Tang
    • 2
  1. 1.Shanghai Pharmaceutical Ind. Design InstituteShanghaiP.R. China
  2. 2.Shanghai Second Education InstituteShanghaiP.R. China

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