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Question

A mixture of 2 moles propane (1), 3 moles butane (2), and 5 moles pentane (3) is contained at 30 bar and 200oC. The van der Waals constants for these species are in picture.

Determine the fugacity and fugacity coefficient of propane using the following approximations:

a) Lewis fugacity rule

b) virial form of the van der Waals equation truncated to the second term

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Chemical Engineering

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