Abstract
In this study, we proposed an alternative analytical procedure for
appraising the fugacity coefficient for gases using second virial
coefficient with Lennard-Jones (12-6) potential. The present research is
more efficient for determining of the fugacity coefficient of gases in
wide ranges temperature and pressure ranges and related thermodynamic
properties which is the novelty of this study. The fugacity coefficient
for gases , , and has calculated in the temperature range from 30 K to
1000 K and pressure range from 0.1 atm to 200 atm by using the obtained
analytical formula. To our knowledge, this work offers the first
approximation to the evaluation of the fugacity coefficient for gases
for and by second virial coefficients. The results obtained using the
analytical formula of the fugacity coefficient is in good agreement with
literature.