Consider a vapor phase mixture of 2 moles propane (1) and 3 moles nitrogen (2) at 15°C and 12 bar. You wish to come up with the fugacity and fugacity coeffi cient for propane. Answer the following questions using the truncated virial equation of state, as follows:

and with parameter values:

(a) Develop an accurate expression for the fugacity and fugacity coeffi cient of species 1 in this mixture, using the preceding equation of state.

(b) Determine numerical values for 

(c) Comment on whether you can use Lewis fugacity rule for this case. Would you expect it to provide an accurate answer?

Transcribed Image Text:

Pu RT = 1+ B'P with B' = yB1 + 2yyB2 + yB22